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Tue, 26 May 2015 07:29:17 BSTThis article celebrates 25 years of Catalyst and also looks at five big discoveries they have reported on in their 100 issues.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Twenty-Five YearsTwenty-Five Years
http://stem.org.uk/rxe4j
http://stem.org.uk/rxe4jhttp://stem.org.uk/rxe4jThu, 21 May 2015 14:57:03 BSTCatalystThis article introduces Laura Waters, who is a chemist at Huddersfield University with an interest in both doing scientific research and communicating her work to a wide audience.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Dr Laura Waters: Research ChemistDr Laura Waters: Research Chemist
http://stem.org.uk/rxe4h
http://stem.org.uk/rxe4hhttp://stem.org.uk/rxe4hThu, 21 May 2015 14:53:45 BSTLaura WatersThis article discusses how simple observations of pests on horse chestnut trees can contribute to a 'citizen science' project.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Conker Tree ScienceConker Tree Science
http://stem.org.uk/rxe4g
http://stem.org.uk/rxe4ghttp://stem.org.uk/rxe4gThu, 21 May 2015 14:50:50 BSTMichael PocockThis article shows how a new understanding of how cells respond to lack of oxygen can help to reduce the tissue damage caused in heart attacks and strokes.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Metabolomics at WorkMetabolomics at Work
http://stem.org.uk/rxe4f
http://stem.org.uk/rxe4fhttp://stem.org.uk/rxe4fThu, 21 May 2015 13:57:44 BSTStefania HartleyThis article discusses how toxic gases gases can be useful in medicine, carbon monoxide is a poisonous gas but it can also help to treat some diseases.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Toxic Gases! Therapeutic? What?!Toxic Gases! Therapeutic? What?!
http://stem.org.uk/rxe4e
http://stem.org.uk/rxe4ehttp://stem.org.uk/rxe4eThu, 21 May 2015 13:53:26 BSTHafeeza AyuoobVytautas KontrimasVytautas KontrimasMark DallasMark DallasThis article investigates the history of models of the atom and discovers how, a century ago, scientists were devising models of the atom in an attempt to explain the limited evidence they had about the fundamental structure of matter.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Models of the AtomModels of the Atom
http://stem.org.uk/rxe4d
http://stem.org.uk/rxe4dhttp://stem.org.uk/rxe4dThu, 21 May 2015 13:50:27 BSTDavid SangThis article discovers how geneticists are beginning to discover the significance of junk DNA.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Anything but JunkAnything but Junk
http://stem.org.uk/rxe4c
http://stem.org.uk/rxe4chttp://stem.org.uk/rxe4cThu, 21 May 2015 13:48:53 BSTDavid MartindillThis article discusses how chemical tests can reduce the numbers of animals used in the testing of new products.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Using Chemistry to Reduce Animal TestingUsing Chemistry to Reduce Animal Testing
http://stem.org.uk/rxe4b
http://stem.org.uk/rxe4bhttp://stem.org.uk/rxe4bThu, 21 May 2015 13:45:12 BSTLaura WatersThis article investigates how scientists at the Open University are devising ways in which dogs can interact with electronic systems including computers.<br />
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The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Animal-Computer InteractionAnimal-Computer Interaction
http://stem.org.uk/rxe4a
http://stem.org.uk/rxe4ahttp://stem.org.uk/rxe4aThu, 21 May 2015 12:43:55 BSTClara ManchiniThe Wellcome Trust worked with the National Science Learning Centre to develop an intensive CPD programme for primary teachers with the aim of improving their expertise to become effective leaders of science in their schools. The Trust commissioned the University of York to help them understand the impacts of the CPD programme using a randomised controlled trial (RCT) that followed participants throughout the delivery of the CPD and for a year afterwards. <br />
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The reports provide rich data that explore quantifiable impacts and the factors in schools that can influence the success of CPD<br />
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There are three reports from this work:<br />
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• The full report of the evaluation with an introductory foreword<br />
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• A comparison of qualitative measures which looks in more detail at the information gained from case study visits to participating schools <br />
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• A case study report exploring teachers perceptions of a RCT together with recommendations for future use of RCTs in educationEvaluation of the Wellcome Trust Primary Science Specialist ProgrammeEvaluation of the Wellcome Trust Primary Science Specialist Programme
http://stem.org.uk/rxe3e
http://stem.org.uk/rxe3ehttp://stem.org.uk/rxe3eTue, 19 May 2015 14:51:26 BSTWellcome TrustThis resource will let students see pink elephants. <br />
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When the human eye is exposed to one colour for a relatively long period of time, the cone cells will become saturated with that colour. Once the eye is exposed to a broad range of colours again, the brain will pick up weaker signals from that colour and an image with that colour missing will be formed.<br />
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The PowerPoint file contains an image of a green elephant to show students, whilst the teaching notes provide the explanation.Seeing Pink ElephantsSeeing Pink Elephants
http://stem.org.uk/rxdya
http://stem.org.uk/rxdyahttp://stem.org.uk/rxdyaTue, 28 Apr 2015 10:56:36 BSTInstitute of PhysicsThis resource contains two excel files dealing with various aspects of fractions, decimals and percentages. <br />
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<b>Fractions, Decimals, Percentages</b><br />
This excel file allows students to explore the relationship between fraction, decimal and percentage. The first interactive sheet shows fractions with 10 as the denominator. Students can reveal the decimal and percentage form. They also need to calculate the angle shown on a pie chart. The second sheet deals with other denominators ranging from 2 to 9. <br />
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The next interactive sheet shows a method of finding the percentage of amounts without using a calculator. The most challenging sheet shows a set of questions where students find percentage of amounts and the answers can be revealed. There are a further 10 sheets of questions on related topics which may be suitable to be duplicated for classroom use. <br />
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<b>Fractions: Decimal Conversion, Recurring</b><br />
This excel sheet begins with a picture of petrol prices, showing a confusion of decimals and fractions which could be used as a discussion point for a lesson starter. The first two interactive sheets give practice in simplifying fractions and converting easy decimals to simplified fractions. <br />
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The next three sheets allow students to explore the relationship between recurring decimals and fractions. The process for finding the fraction for a recurring decimal is then shown with the student able to choose to have one, two or three recurring decimal places. The last interactive sheet allows the student to explore more complicated examples.<br />
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There are a further seven sheets of questions which may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Fractions, Decimals and PercentagesFractions, Decimals and Percentages
http://stem.org.uk/rxdxm
http://stem.org.uk/rxdxmhttp://stem.org.uk/rxdxmTue, 21 Apr 2015 11:51:29 BSTMichael BawtreeThis booklet aims to provide a starting point for reflection and discussion on issues in primary science education. It has been produced to celebrate the 25th anniversary of the original Active Teaching and Learning Project (ATLAS) which drew upon the expertise, experience and advice of teachers and educators from around the country in 1986. Much has changed in science education since then, yet many things have stayed the same. The booklet is guided by the two principles that: <br />
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1. Children learn best when they are motivated to learn and when they are actively involved in the learning process. <br />
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2. A teacher is likely to be more effective having first gained the confidence and skills to use a range of strategies which provide a variety of active learning experiences for the students.<br />
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This resource has been provided by the Centre for Science Education at Sheffield Hallam University.An A-Z of Primary Science: Active Teaching and Learning Approaches in ScienceAn A-Z of Primary Science: Active Teaching and Learning Approaches in Science
http://stem.org.uk/rxdxj
http://stem.org.uk/rxdxjhttp://stem.org.uk/rxdxjThu, 16 Apr 2015 12:34:03 BSTLynne BianchiRosemary FeaseyRosemary FeaseyThis resource contains a series of lessons which are designed to extend students’ knowledge and understanding of plastics and plastic waste on a global scale. Linking to materials and their properties, the environment, recycling and design and technology, they contain investigations and activities at both primary and secondary level. <br />
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These activities include: sorting and identifying plastics based on their properties, plastic production, making plastic in the classroom, comparing oil-based and bio-plastics and their environmental impact, which materials take the longest to decompose and the efficacy of recycling plastic. <br />
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There is also a series of activities which involve designing, making and evaluating products from waste plastics, for a UK or international market.<br />
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Provided by Practical Action They include teachers’ notes, a classroom presentation, poster and a Crest Awards Discovery Passport.Plastics ChallengePlastics Challenge
http://stem.org.uk/rxdxe
http://stem.org.uk/rxdxehttp://stem.org.uk/rxdxeMon, 13 Apr 2015 13:15:32 BSTPractical ActionThe Outlook highlights the continuous change in the energy system – the changing fuel mix, the changing patterns of trade – as it adapts to meet the world’s growing energy needs. It also highlights the challenge of delivering energy supplies which are sustainable, secure and affordable. <br />
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The Outlook emphasizes the role of competition and market forces in driving technology and innovation to help us meet that challenge.<br />
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This edition endeavours to predict the likely path of global energy markets to 2035 by taking into account possible changes in policy, technology and the economy.BP Energy Outlook 2035BP Energy Outlook 2035
http://stem.org.uk/rxdxd
http://stem.org.uk/rxdxdhttp://stem.org.uk/rxdxdWed, 08 Apr 2015 15:08:55 BSTBPDesign Engineer Yusuf Muhammad is working on a revolutionary new household fire-safety device. Incorporating the techniques of professional firefighters into everyday kitchen plumbing, his device extinguishes fires fast and aims to save lives.<br />
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Born to Engineer - Yusuf Muhammad film was produced for the ERA Foundation as part of a campaign to attract young people into engineering education.Born to Engineer - Yusuf MuhammadBorn to Engineer - Yusuf Muhammad
http://stem.org.uk/rxdw7
http://stem.org.uk/rxdw7http://stem.org.uk/rxdw7Tue, 24 Mar 2015 11:42:24 GMTBorn to EngineerWithin this lesson, students will learn about the classical force of gravity, put forward by Newton. They will learn the difference between mass and weight, the equation that relates the two and perform an investigation into the strength of gravity on Earth.<br />
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Students will then use a 3D model of space to better imagine the force of gravity acting over distances on stars and planets.<br />
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This lesson plan has been developed by Jodrell Bank as part of the Science and Technology Facilities Council’s (STFC) Science and Society Large Award project Big Science: Big Telescopes.GravityGravity
http://stem.org.uk/rxdw6
http://stem.org.uk/rxdw6http://stem.org.uk/rxdw6Tue, 24 Mar 2015 11:02:53 GMTJodrell BankIn this lesson, students will be introduced to the advantages of big telescopes and the use of telescopes to do astronomy across the whole electromagnetic spectrum. They will then explore the transit method of detecting exoplanets (either practically, or using real astronomical data) and use mathematics to calculate some of the properties of their exoplanet.<br />
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This lesson plan has been developed by Jodrell Bank as part of the Science and Technology Facilities Council’s (STFC) Science and Society Large Award project Big Science: Big TelescopesExoplanetsExoplanets
http://stem.org.uk/rxdw5
http://stem.org.uk/rxdw5http://stem.org.uk/rxdw5Tue, 24 Mar 2015 10:23:08 GMTJodrell BankThis report contains the findings of a research study which looked into the use of electronic books (e-books or i-books) within continuous professional development (CPD). <br />
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The research looked in particular at the way that teachers on the 2013-14 National Science Learning Centre Primary Science Specialist course used an i-book resource to complement their CPD. It discusses the way in which i-books are used in CPD and how the ways in which learners read, are taught, and learn needs to change in order to maximise the benefits of e-books in their studies. It also provides an insight into the impact the i-book had on the science subject knowledge of the teachers, both in terms of reinforcing what they already know, and in extending their learning.<br />
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Included in the resource is a short guide for successful use of the i-book resources. <br />
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This research commissioned by the Wellcome Trust was carried out by the Isos Partnership.Researching the Use of the i-Book Within the Primary Science Specialist ProgrammeResearching the Use of the i-Book Within the Primary Science Specialist Programme
http://stem.org.uk/rxdw4
http://stem.org.uk/rxdw4http://stem.org.uk/rxdw4Mon, 23 Mar 2015 12:01:50 GMTRachel DunfordFrom the Triple Science Support Programme, this case study looks at Whitefield School. The main challenges for the school in increasing the size of the triple science cohort was felt to be the attainment of students at Key Stage Three, the complexity of the schools timetable and the move from modular to linear assessment.<br />
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The case study offers solutions to the challenges experienced by the school and describes the benefits of having the support from the TSSP advisor.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here.</a>Triple Science Support Programme Schools Case Study: Whitefield SchoolTriple Science Support Programme Schools Case Study: Whitefield School
http://stem.org.uk/rxdw3
http://stem.org.uk/rxdw3http://stem.org.uk/rxdw3Fri, 20 Mar 2015 12:34:27 GMTTSSPFrom the Triple Science Support Programme, this case study looks at the Market Bosworth School which has faced a number of challenges preventing them from expanding and improving the delivery of triple science. The challenges included timetabling, ensuring the department was sufficiently resourced and communicating the benefits of triple science to parents.<br />
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The case study offers solutions to the challenges experienced by the school and describes the benefits of having the support from the TSSP advisor.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here.</a>Triple Science Support Programme Schools Case Study: The Market Bosworth SchoolTriple Science Support Programme Schools Case Study: The Market Bosworth School
http://stem.org.uk/rxdw2
http://stem.org.uk/rxdw2http://stem.org.uk/rxdw2Fri, 20 Mar 2015 12:31:39 GMTTSSPFrom the Triple Science Support Programme, this case study looks at the Kingswood Academy which has faced a number of challenges preventing them from expanding and improving the delivery of triple science. The challenges included timetabling issues and staff capacity constraints, students’ inadequate literacy and maths skills and their lack of competency in independent inquiry. External factors were also a cause for concern, such as the transition to linear assessment.<br />
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The case study offers solutions to the challenges experienced by the school and describes the benefits of having the support from the TSSP advisor and the regional Science Learning Centre.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here.</a>Triple Science Support Programme Schools Case Study: The Kingswood AcademyTriple Science Support Programme Schools Case Study: The Kingswood Academy
http://stem.org.uk/rxdvz
http://stem.org.uk/rxdvzhttp://stem.org.uk/rxdvzFri, 20 Mar 2015 12:28:14 GMTTSSPFrom the Triple Science Support Programme, this case study focuses on the STEM Sussex Triple Science Support Network which has faced a number of challenges preventing schools from expanding and improving the delivery of triple science. <br />
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A needs analysis was conducted amongst member schools to identify relevant training and development opportunities. The activities outlined in the network’s action plan were developed to meet these needs on achievement of an agreed set of outcomes. The needs analysis informed the programme of CPD courses for biology, chemistry and physics teachers. CPD sessions were also provided for technicians across all three sciences.<br />
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The network also identified an additional need to support teachers in preparing for extended examination answers through a greater focus on improving literacy for science.<br />
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The case study offers solutions to the challenges experienced by the network and describes the benefits of having the support from the TSSP advisor.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here.</a>Triple Science Support Programme Schools Case Study: STEM Sussex Triple Science Support NetworkTriple Science Support Programme Schools Case Study: STEM Sussex Triple Science Support Network
http://stem.org.uk/rxdvx
http://stem.org.uk/rxdvxhttp://stem.org.uk/rxdvxFri, 20 Mar 2015 12:20:23 GMTTSSPFrom the Triple Science Support Programme, this case study looks at St Mary’s Church of England High School which faced a number of challenges preventing in sustaining the delivery of triple science. <br />
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The challenges included staff capacity, although most second set students are considered able to cope with the demands of triple science, only two teachers had the required experience to deliver it. Timetabling constraints prevented these teachers taking on additional triple science groups. Furthermore, the science department had three Newly Qualified Teachers who, it was thought, required additional training and support to have sufficient confidence to teach triple science.<br />
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In addition, students’ poor literacy skills and lack of revision skills were thought to be a barrier to progress.<br />
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The case study offers solutions to the challenges experienced by the academy and describes the benefits of having the support from the TSSP advisor and the Science Learning Centre East of England.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here.</a>Triple Science Support Programme School Case Study: St Mary’s Church of England High SchoolTriple Science Support Programme School Case Study: St Mary’s Church of England High School
http://stem.org.uk/rxdvw
http://stem.org.uk/rxdvwhttp://stem.org.uk/rxdvwFri, 20 Mar 2015 12:17:12 GMTTSSPFrom the Triple Science Support Programme, this case study looks at Small Heath School which has faced a number of challenges preventing in sustaining the delivery of triple science. <br />
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The challenges included timetabling restrictions, which constrained the amount of class time available within the school day to deliver triple science. Consequently, much of the delivery took place after school hours, which had a detrimental effect on students’ uptake. The inclusion of Triple Science GCSE in the main timetable overcame this constraint, achieved by changing the subject option block structure. <br />
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The school also faced challenges in resourcing science classes, as it lacked the specialist equipment required for certain advanced practical exercises. As a result, active participation from students was less than ideal, as they had to rely on online demonstrations and studying investigation results in text books. The school also faced challenges in resourcing triple science delivery due to a lack of specialist teacher capacity, particularly linked to difficulties in recruiting physics specialists.<br />
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The case study offers solutions to the challenges experienced by the school and describes the benefits of having the support from the TSSP advisor.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1259">here.</a>Triple Science Support Programme School Case Study: Small Heath SchoolTriple Science Support Programme School Case Study: Small Heath School
http://stem.org.uk/rxdvv
http://stem.org.uk/rxdvvhttp://stem.org.uk/rxdvvFri, 20 Mar 2015 12:13:29 GMTTSSPFrom the Triple Science Support Programme, this case study focuses on the Redcar and Cleveland Triple Science Network. Their main aims were:<br />
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• The development and delivery of CPD for non-specialists (particularly at Key Stage Three). <br />
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• The development of a support network to help teachers at network schools to take advantage of good practice (particularly relating to teaching at Key Stage Three and Key Stage Five) <br />
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• The development of improved links with local industry to stimulate interest in science (and science-based careers), particularly amongst underrepresented groups such as girls and students from deprived backgrounds. <br />
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The case study provides an overview of the solutions, key learning points and the impact of the network on both teachers and students.<br />
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The Schools guide to the TSSP school case studies is available here <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1259">here.</a>Triple Science Support Programme School Case Study: Redcar and Cleveland Triple Science NetworkTriple Science Support Programme School Case Study: Redcar and Cleveland Triple Science Network
http://stem.org.uk/rxdvu
http://stem.org.uk/rxdvuhttp://stem.org.uk/rxdvuFri, 20 Mar 2015 12:09:39 GMTTSSPFrom the Triple Science Support Programme, this case study focuses on the Pate’s Triple Science Network. The Pate’s network had three specific objectives, which have been based on the characteristics of local schools. These are to increase uptake of triple science, increase the confidence of teachers to deliver triple science and to increase student uptake of science and engineering apprenticeships.<br />
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Pate’s network represents a good example of how a high achieving school is able to share its knowledge in delivering triple science with other local schools in the area. In particular, it has been Pate’s local knowledge of what is available, and long standing experience in delivering triple science, which it has been able to share with the rest of the network. <br />
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Pate’s network experience also provided other networks with learning in terms of how to engage schools. At a time when school budgets are constrained, being able to offer schools resources for free meant that many of the member schools used resources who might have not otherwise engaged with the network. Critically, it was offering resources with the requirement that schools attend a second event, which helped to increase awareness and engagement in the network.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1260">here.</a>Triple Science Support Programme School Case Study: Pate’s Grammar SchoolTriple Science Support Programme School Case Study: Pate’s Grammar School
http://stem.org.uk/rxdvs
http://stem.org.uk/rxdvshttp://stem.org.uk/rxdvsFri, 20 Mar 2015 12:00:54 GMTTSSPFrom the Triple Science Support Programme, this case study looks at Castle View Enterprise Academy which has faced a number of challenges preventing them from expanding and improving the delivery of triple science. The challenges included: poor student literacy, low attainment at Key Stage Three, lack of specialist teaching, the move to linear assessment and timetable issues.<br />
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The case study offers solutions to the challenges experienced by the academy and describes the benefits of engaging in a regional science network and support from a TSSP advisor.<br />
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One member of staff also attended a workshop run by the Science Learning Centre – North East on developing provision to support for G&T students. At a time at which there is a perception that obtaining the higher grades has become more difficult, staff welcomed support in this area. These materials have now been disseminated across the department.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1256">here.</a>Triple Science Support Programme School Case Study: Castle View Enterprise AcademyTriple Science Support Programme School Case Study: Castle View Enterprise Academy
http://stem.org.uk/rxdvr
http://stem.org.uk/rxdvrhttp://stem.org.uk/rxdvrFri, 20 Mar 2015 11:52:51 GMTTSSPFrom the Triple Science Support Programme, this case study focuses on the Nottingham Triple Science Network launched 2012 with funding to develop literacy resources and practicals for triple science, as well as a programme of CPD. The network aimed to increase students’ attainment by stimulating the motivation and engagement of students, and increasing the confidence of both teachers and students both in tackling controlled assessments and the How Science Works strand of the national framework for secondary science.<br />
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The network faced some potential issues associated with the introduction of linear assessment, and the possible implications of new science curricula and assessment requirements. A priority for the network was to provide the space for teachers to disseminate and discuss good practice and model lessons, with a view to developing confidence and subject knowledge, particularly amongst non-specialist teachers.<br />
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The case study provides an overview of the solutions, key learning points and how it has developed a more sustainable approach towards maintaining the network.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1260">here.</a>Triple Science Support Programme School Case Study: Nottingham Triple Science NetworkTriple Science Support Programme School Case Study: Nottingham Triple Science Network
http://stem.org.uk/rxdvq
http://stem.org.uk/rxdvqhttp://stem.org.uk/rxdvqFri, 20 Mar 2015 11:48:25 GMTTSSPFrom the Triple Science Support Programme, this case study describes how Newham and Waltham Forest have set up the Triple Science Network (TSN) after the local authority funding constraints led to the withdrawal of subject advisors in the local schools. <br />
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Through CPD and targeted support, schools have been able to address common issues and strengthen their triple science teaching quality and capacity, with the aim of widening access to triple science. Schools welcomed CPD that was tailored to focus on the following objectives which met local needs:<br />
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• Develop students’ literacy, motivated by the focus on extended writing in examinations.<br />
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• Develop a solid foundation in Key Stage Three skills to prepare students for triple science.<br />
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• Increase teacher confidence and subject knowledge for triple science delivery.<br />
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• Improve the interactivity of lessons (and draw out learning objectives).<br />
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The case study also outlines key learning outcomes and how it has developed a more sustainable approach towards maintaining the network.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1260">here</a>.Triple Science Support Programme School Case Study: Newham and Waltham ForestTriple Science Support Programme School Case Study: Newham and Waltham Forest
http://stem.org.uk/rxdvp
http://stem.org.uk/rxdvphttp://stem.org.uk/rxdvpFri, 20 Mar 2015 11:43:15 GMTTSSPFrom the Triple Science Support Programme, this case study looks at Manchester Academy which has faced a number of challenges preventing them from expanding and improving the delivery of triple science. The challenges included: teacher subject knowledge, student skills and timetabling issues.<br />
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The case study offers solutions to the challenges experienced by the academy and describes the benefits of having the support from the TSSP advisor.<br />
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The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1259">here</a>.Triple Science Support Programme School Case Study: Manchester AcademyTriple Science Support Programme School Case Study: Manchester Academy
http://stem.org.uk/rxdvo
http://stem.org.uk/rxdvohttp://stem.org.uk/rxdvoFri, 20 Mar 2015 11:36:13 GMTTSSPFrom the Triple Science Support Programme, this case study illustrates how Kettering Science Academy has faced a number of challenges jeopardising the successful expansion of triple science, such as:<br />
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• Inadequate literacy skills among the students.<br />
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• Insufficient time to teach Triple Science GCSE content in the time that was allocated, a situation worsened following the introduction of the new curriculum and an increase in content by one third.<br />
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• The lack of triple science teaching capacity, due to the high number of NQTs and lack of experience in teaching triple science amongst other staff members.<br />
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• The transition to a linear assessment structure which was anticipated to impact on student motivation and was therefore an area where teachers need support.<br />
<br />
The case study offers solution to the challenges experienced by the academy and describes the benefits of having the support from the TSSP advisor.<br />
<br />
The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1256">here</a>.Triple Science Support Programme School Case Study: Kettering Science AcademyTriple Science Support Programme School Case Study: Kettering Science Academy
http://stem.org.uk/rxdvn
http://stem.org.uk/rxdvnhttp://stem.org.uk/rxdvnFri, 20 Mar 2015 11:31:24 GMTTSSPFrom the Triple Science Support Programme, this case study illustrates how Chalfonts Community College has faced a number of challenges arising from the introduction of a new triple science syllabus. A key challenge was the enhanced literacy requirement of the new GCSE questions which affected the longer, six-mark questions, where students needed to organise their thinking and structure their argument to answer the question.<br />
<br />
Another challenge noted by the Head of Science has been in moving towards linear assessment and the implications for the teaching of course content and structure of lessons.<br />
<br />
An additional challenge that the school faced was planning the teaching of triple science content. Teachers have found planning additional triple science modules around the core and additional syllabus challenging, particularly given the school’s commitment to use subject specialists to teach each science subject.<br />
<br />
The case study provides some background information about Chalfonts Community <br />
College, how the college dealt with their challenges, the benefits of participating in the TSSP and finally, key learning points.<br />
<br />
The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1257">here</a>.Triple Science Support Programme School Case Study: Chalfonts Community CollegeTriple Science Support Programme School Case Study: Chalfonts Community College
http://stem.org.uk/rxdvm
http://stem.org.uk/rxdvmhttp://stem.org.uk/rxdvmFri, 20 Mar 2015 11:16:56 GMTTSSPFrom the Triple Science Support Programme, this case study illustrates how through the maths skills and STEM engagement interventions for target students, the schools from the Camden’s Triple Science Network have sought to tackle the issue of underrepresentation of students from more deprived backgrounds in triple science cohorts. <br />
<br />
By focusing on this target group, the network has aimed to meet one of the Triple Science Support Programme’s key objectives, to increase triple science entries amongst non-traditional pupil groups.<br />
<br />
The case study provides some background information about Camden schools, the barriers which prevented the target students from accessing triple science and how the schools dealt with the issue of under-representation are provided as part of this case study.<br />
<br />
The Schools guide to the TSSP school case studies is available <a target="_blank" href="http://www.nationalstemcentre.org.uk/elibrary/collection-background/1258">here</a>.Triple Science Support Programme School Case Study: Camden Triple Science NetworkTriple Science Support Programme School Case Study: Camden Triple Science Network
http://stem.org.uk/rxdvk
http://stem.org.uk/rxdvkhttp://stem.org.uk/rxdvkFri, 20 Mar 2015 10:47:45 GMTTSSPThis simple worksheet explains the inputs, sensors and outputs on the Astro Pi board. It contains a section for students to fill in with their ideas and a description of what they would use the Astro Pi for on the International Space Station.Astro Pi WorksheetAstro Pi Worksheet
http://stem.org.uk/rxdvj
http://stem.org.uk/rxdvjhttp://stem.org.uk/rxdvjThu, 19 Mar 2015 15:59:28 GMTESERO-UKThis game, for two players, requires students to move around a Cartesian grid using column vectors, collecting stars as they go. Each star is worth a different number of points. The winner is the player who can collect the most points.Vector StarsVector Stars
http://stem.org.uk/rxdvh
http://stem.org.uk/rxdvhhttp://stem.org.uk/rxdvhTue, 17 Mar 2015 12:26:43 GMTAccess MathsTimes tables 7911; students are presented with fifty questions requiring solutions to times tables questions from the 7, 9 and 11 times tables. Students record how long it takes them to complete the task and how many correct answers they score.<br />
<br />
Fill in the blanks: presents students with a partially completed multiplication grid. However, only answers are given. Students are required to fill in the lead number of each row and each column in order to make the given solutions correct and then complete the remainder of the solutions.Times TablesTimes Tables
http://stem.org.uk/rxdvg
http://stem.org.uk/rxdvghttp://stem.org.uk/rxdvgTue, 17 Mar 2015 12:22:48 GMTAccess MathsThis activity, for two players, is based upon the game of boxes. Students are presented with a partially completed game, with double brackets to expand correctly in order to gain extra edges. Solutions are at the bottom of the page for a player's opponent to check the validity of the solution. A correct answer gains another edge, completing a box results in another turn.Double BracketsDouble Brackets
http://stem.org.uk/rxdvf
http://stem.org.uk/rxdvfhttp://stem.org.uk/rxdvfTue, 17 Mar 2015 12:19:37 GMTAccess MathsThis activity takes the form of a series of crosses in which numbers are placed into the left and right hand cells in such a way that the top cell contains their product and the bottom cell their sum. The combination of values provided varies requiring students to perform different tasks to solve the problems. Students are challenged to make up their own puzzle.Factorising QuadraticsFactorising Quadratics
http://stem.org.uk/rxdve
http://stem.org.uk/rxdvehttp://stem.org.uk/rxdveTue, 17 Mar 2015 12:17:25 GMTAccess MathsThe match card resource consists of six cards which require the students to increase an amount by a percentage, six cards which contain a multiplier and six cards each containing a value. Students are require to match the question with the multiplier and the solution.<br />
<br />
The percentage increase worksheet contains three levels of questions: got it!, smashed it! and mastered it! The first level requires students to write down the multiplier when increasing by a given percentage. The second level require students to increase an amount by a percentage and the third question requires students to compare different banks offering different interest rates.Percentage IncreasePercentage Increase
http://stem.org.uk/rxdvd
http://stem.org.uk/rxdvdhttp://stem.org.uk/rxdvdTue, 17 Mar 2015 12:13:50 GMTAccess MathsThis resource consists of three pages of challenge cards. Each card contains eight challenges.<br />
<br />
Challenge cards 1 asks students to calculate the number of triangles in a shape, the least number of colours required to colour a shape, how to measure exactly 4 gallons using a 5 gallon and a 3 gallon jug, a missing number puzzle, a prime number puzzle, a perimeter puzzle, a number puzzle and a time puzzle.<br />
<br />
Challenge card 2 contains a probability question, requires students to form and solve a simultaneous equation, calculate percentages, calculate means, ratio puzzles, use Venn diagrams and a speed, distance time problem.<br />
<br />
Challenge card 3 contains a question requiring the use of Pythagoras' theorem, a number problem, students to find the area of a circle, a fractions problem, a prime number puzzle, calculate the number of squares on a chess board, an averages problem and a simultaneous equation problem.Challenge CardsChallenge Cards
http://stem.org.uk/rxdvc
http://stem.org.uk/rxdvchttp://stem.org.uk/rxdvcTue, 17 Mar 2015 12:11:47 GMTAccess MathsStudents are presented with increasingly challenging algebra problems to solve. Each wall consist of three bricks in the lower row, two bricks in the middle row and one brick on the top row. Students complete the wall by adding two algebraic terms to find the term which sits in the brick above. However, in most cases the lower row is not complete, but other values have been included requiring students to subtract algebraic terms. Students are challenged to create their own wall.Brick Wall ProblemsBrick Wall Problems
http://stem.org.uk/rxdvb
http://stem.org.uk/rxdvbhttp://stem.org.uk/rxdvbTue, 17 Mar 2015 12:09:07 GMTAccess MathsThis matching exercise consists of six shapes, six perimeters and six areas . The shapes are an isosceles triangle, a square, a compound shapes made from two rectangles and compound shapes made from a rectangle and a triangle. Dimensions are provided on the diagrams of the shapes, however, in some cases extra information is provided and in other cases students need to calculate require lengths. Students are required to match the shape with the value of its perimeter and the value of its area.Area and PerimeterArea and Perimeter
http://stem.org.uk/rxdva
http://stem.org.uk/rxdvahttp://stem.org.uk/rxdvaTue, 17 Mar 2015 12:06:47 GMTAccess MathsStudents are presented with a 3 by 3 grid and a series of cards each containing an algebraic statement. Students are required to place the cards on the grid in such a fashion that each row, each column and each diagonal add to give the magic 'number' of 12a + 15b.<br />
<br />
Students are then challenged to make up their own puzzle. The second page contains the solution to the puzzle.Algebra Magic SquareAlgebra Magic Square
http://stem.org.uk/rxdv9
http://stem.org.uk/rxdv9http://stem.org.uk/rxdv9Tue, 17 Mar 2015 12:04:50 GMTAccess MathsThis resource features a selection of questions requiring students to add and subtract fractions and mixed numbers.<br />
<br />
The questions are split into three sections: must, should and could. Students are directed to complete the first question in each row. Students then decide whether they are confident enough to move on to the next section or continue practising the other questions in that section before moving on.<br />
<br />
The answers appear at the bottom of the page, however, the answers are not in order. Students are required to check that the answer they got is somewhere in the list and tick it off.Adding and Subtracting FractionsAdding and Subtracting Fractions
http://stem.org.uk/rxdv8
http://stem.org.uk/rxdv8http://stem.org.uk/rxdv8Tue, 17 Mar 2015 12:02:17 GMTAccess MathsThis resource provides a film which explains how the movement of the tectonic plates can cause earthquakes and tsunamis. Students are then introduced to a rescue operation to save the population of a string of islands known as the Snowpac chain. There has been a disastrous earthquake which has devastated this volcanic island chain and help will not arrive for seven days. <br />
<br />
Students work in teams to plan the quickest way for the RAF to deliver food, water and medical aid to the population of the island, which is 3780 miles from the UK. They must gather information about the island, how much food and water will be needed and the transport options available.<br />
<br />
The resource also looks at the careers available in the RAF.EarthquakeEarthquake
http://stem.org.uk/rxdv7
http://stem.org.uk/rxdv7http://stem.org.uk/rxdv7Tue, 17 Mar 2015 11:36:19 GMTRoyal Air ForceThis resource puts students in charge of an RAF search and rescue operation in the UK. To do this, they are provided with support and advice from a number of experts at different points during the rescue. They work as a team to discuss this advice and choose the best course of action, justifying the reasons for their choices<br />
<br />
When thirteen people are reported missing on Mount Snowdon in bad weather, students are presented with three plans and must evaluate the strengths and weaknesses of each plan: a helicopter search, helicopter search and pick up, and a ground search and rescue. Students are then given more information, which they must rank in order of importance before finally planning the mission.<br />
<br />
The resource also looks at the careers available in the RAF.Search and RescueSearch and Rescue
http://stem.org.uk/rxdv6
http://stem.org.uk/rxdv6http://stem.org.uk/rxdv6Tue, 17 Mar 2015 11:27:32 GMTRoyal Air ForceThis resource is based on Felicity Ashton’s expedition to Antarctica. Felicity was the first person to ski across Antarctica using only muscle power and the first women to cross Antarctica alone. <br />
<br />
Students are introduced to the technologies that are used on expeditions to dangerous and remote locations, and in particular Antarctica. <br />
<br />
Firstly, students consider why Scott’s expedition to the South Pole failed and why the Norwegian Roald Amundsen succeeded. They then compare these to modern expeditions like Felicity’s which took just 59 days, rather than over a year, due to the equipment she had.<br />
<br />
Students then work in teams to choose the equipment for the RAF’s planned expedition to Antarctica, looking at some of the technologies that go into these pieces of equipment. Using the information provided, they plan five main areas of the expedition: transport, shelter, communications, mapping and food and consider the use of technology such as GPS mapping, satellite communication, high-calorie food and specialised clothing.<br />
<br />
The resource also looks at the careers available in the RAF.ExpeditionExpedition
http://stem.org.uk/rxdv5
http://stem.org.uk/rxdv5http://stem.org.uk/rxdv5Tue, 17 Mar 2015 11:01:55 GMTRoyal Air ForceThis resource looks at how biomimicry enables engineers to take ideas from the natural world to develop new products and designs. The specific example of gecko tape is used to illustrate this. <br />
<br />
Students play a game of pairs where they need to match technology with the animal or plant which inspired its development. They then work in groups to design a future technology and annotating their sketch to explain how it has been inspired by nature.<br />
<br />
The resource also looks at the careers available in the RAF.BiomimicryBiomimicry
http://stem.org.uk/rxdv4
http://stem.org.uk/rxdv4http://stem.org.uk/rxdv4Tue, 17 Mar 2015 10:46:08 GMTRoyal Air ForceThis resource looks at how distance can be measured using sound. A brief description of sonar and radar is given, along with an explanation of the Doppler effect and the wave equation. Students then use this equation to answer a set of questions.Radar, Waves, Bats and BLASTRadar, Waves, Bats and BLAST
http://stem.org.uk/rxdv2
http://stem.org.uk/rxdv2http://stem.org.uk/rxdv2Mon, 16 Mar 2015 12:18:01 GMTBAE SystemsIn this activity, students see how the primary colours of light turn white when mixed together. There is a brief description of the visible spectrum and how animals can see UV light, with some questions for students to answer.Light and ColourLight and Colour
http://stem.org.uk/rxduy
http://stem.org.uk/rxduyhttp://stem.org.uk/rxduyMon, 16 Mar 2015 12:08:50 GMTBAE SystemsThis activity idea looks at different types of seed dispersal used by plants. Children carefully observe different types of seed head and decide which method different plants use to spread their seeds. They then create a paper spinner to model the dispersal of sycamore seeds and compare this to the way helicopter blades spin.<br />
<br />
This resource has been provided by BAE Systems.SeedsSeeds
http://stem.org.uk/rxdux
http://stem.org.uk/rxduxhttp://stem.org.uk/rxduxMon, 16 Mar 2015 12:06:37 GMTBAE SystemsThis activity demonstrates the uptake and transport of water in plants. Plants take up water and nutrients through tiny tubes running the length of the plant. Using cut flowers and coloured water children investigate the way in which water is transported within plants through the process of transpiration. <br />
<br />
Aimed at primary level, this resource has been provided by BAE Systems.Water and PlantsWater and Plants
http://stem.org.uk/rxduw
http://stem.org.uk/rxduwhttp://stem.org.uk/rxduwMon, 16 Mar 2015 12:04:49 GMTBAE SystemsIn this activity children are challenged to build a bridge 50cm wide to support the weight of a food tin. They must do this using only drinking straws, tape and string. First they investigate different shapes to find out which will be better at absorbing load. They then design and create their bridges and test them out. <br />
<br />
Aimed at primary level, this resource has been provided by BAE Systems.Bridge BuildingBridge Building
http://stem.org.uk/rxduv
http://stem.org.uk/rxduvhttp://stem.org.uk/rxduvMon, 16 Mar 2015 12:02:27 GMTBAE SystemsThis activity explores 3D shapes and where they may been seen in everyday life. Children construct four shapes and think about where these shapes may be seen in different vehicles in different situations such as the road, airport, railway station, the ocean, and in space.<br />
<br />
Aimed at primary level, this resource has been provided by BAE Systems.ShapesShapes
http://stem.org.uk/rxduu
http://stem.org.uk/rxduuhttp://stem.org.uk/rxduuMon, 16 Mar 2015 11:57:48 GMTBAE SystemsThis activity provides a simple demonstration of forces and motion. There is a basic description of non-contact forces and some questions for students to answer.Newton's First Law of MotionNewton's First Law of Motion
http://stem.org.uk/rxdut
http://stem.org.uk/rxduthttp://stem.org.uk/rxdutMon, 16 Mar 2015 11:55:39 GMTBAE SystemsIn this activity, students make their own thermometer using a jar and a straw. There is a simple explanation of expansion in liquids and questions for students to answer about the Celsius and Fahrenheit scales.Create you own bulb thermometerCreate you own bulb thermometer
http://stem.org.uk/rxdus
http://stem.org.uk/rxdushttp://stem.org.uk/rxdusMon, 16 Mar 2015 11:54:12 GMTBAE SystemsIn this activity, students make a nail into an electromagnet. They then investigate whether increasing the number of coils of wire, or the thickness or length of the mail, affects the strength of the electromagnet.Make your own electromagnetMake your own electromagnet
http://stem.org.uk/rxdur
http://stem.org.uk/rxdurhttp://stem.org.uk/rxdurMon, 16 Mar 2015 11:50:37 GMTBAE SystemsThis activity sheet looks at the changing state of water. Children think about the way water behaves when it is heated to boiling point or cooled to freezing point and discuss the changes in state. They then look at some of the properties of water in its liquid state and write them down.<br />
<br />
This resource has been provided by BAE Systems.How Water BehavesHow Water Behaves
http://stem.org.uk/rxduq
http://stem.org.uk/rxduqhttp://stem.org.uk/rxduqMon, 16 Mar 2015 11:49:04 GMTBAE SystemsIn this activity, students use similar triangles to estimate the diameter of the moon.Diameter of the MoonDiameter of the Moon
http://stem.org.uk/rxdup
http://stem.org.uk/rxduphttp://stem.org.uk/rxdupMon, 16 Mar 2015 11:42:46 GMTBAE SystemsThis resource shows an example of how to create condensation and precipitation in a jar. It could be used when looking at changes of state and the water cycle.<br />
<br />
Aimed at primary level this activity has been provided by BAE Systems.PrecipitationPrecipitation
http://stem.org.uk/rxduo
http://stem.org.uk/rxduohttp://stem.org.uk/rxduoMon, 16 Mar 2015 11:32:28 GMTBAE SystemsAimed at primary level, this activity links to the topic of light. Using the fact that light reflects away from a mirror at the same angle that it hits the mirror, children follow a set of instructions to design and make a periscope to look around corners. <br />
<br />
This activity has been provided by BAE Systems.PeriscopePeriscope
http://stem.org.uk/rxdun
http://stem.org.uk/rxdunhttp://stem.org.uk/rxdunMon, 16 Mar 2015 11:29:07 GMTBAE SystemsThis resource provides an activity in which children create a scale representation of the distance of the Planets away from the Sun. Using the scale of one sheet of toilet paper = 50,000,000 km children calculate the number of sheets of toilet paper required for the correct spacing of the Planets from the Sun. <br />
<br />
This activity has been provided by BAE Systems.Solar SystemSolar System
http://stem.org.uk/rxdum
http://stem.org.uk/rxdumhttp://stem.org.uk/rxdumMon, 16 Mar 2015 11:26:20 GMTBAE SystemsExplore how electricity flows and the effect of conductors and insulators in this whole class activity. Using balloons and a range of everyday objects children role-play parts of a circuit including: batteries, light bulbs, connecting wires, conductors and insulators.<br />
<br />
Aimed at primary level, this activity has been provided by BAE Systems.CircuitsCircuits
http://stem.org.uk/rxduk
http://stem.org.uk/rxdukhttp://stem.org.uk/rxdukMon, 16 Mar 2015 11:24:12 GMTBAE SystemsThis paired-programming activity from the Barefoot Computing project focusses on sequences in algorithms and programs. <br />
<br />
Children create an animation of a Viking raid – ideally they will have previously studied Vikings but this is not crucial. A Scratch file is provided for the children to build on, containing several sprites related to Vikings. A short example animation is also included, which is used in discussion of correct sequencing and movement. The task reinforces the use of co-ordinate systems and timing, and requires consideration of audience and production quality. <br />
<br />
A wide range of Scratch commands and tools are used, for tinkering and for working towards specific outcomes.Viking RaidViking Raid
http://stem.org.uk/rxduj
http://stem.org.uk/rxdujhttp://stem.org.uk/rxdujFri, 13 Mar 2015 12:47:13 GMTBarefoot ComputingThis activity away from the computer is from the Barefoot Computing project. It is intended to provide a theoretical understanding of why and how variables are used in computer programming, using the example of score-keeping in a classroom quiz.<br />
<br />
Involving several volunteers from the group, the activity uses whiteboards and pens to demonstrate how numbers can be stored, used in calculations and displayed to users. <br />
<br />
The children also consider how algorithms using variables can be written, and extension activities examine how further calculations might make use of them.Variables UnpluggedVariables Unplugged
http://stem.org.uk/rxduh
http://stem.org.uk/rxduhhttp://stem.org.uk/rxduhFri, 13 Mar 2015 12:38:23 GMTBarefoot ComputingThis Barefoot Computing primary school resource helps children to Understand how search engines work. <br />
<br />
By acting as a ‘web crawler’ and collecting information across a small selection of web pages, they learn what in data is indexed by search engines and how this is used when a search query is received. As well as indexing using keyword counts, the children are asked to discuss ways to rank the results. <br />
<br />
The activity includes background notes for teachers, and suggests extension and assessment activities.Selecting Search ResultsSelecting Search Results
http://stem.org.uk/rxdug
http://stem.org.uk/rxdughttp://stem.org.uk/rxdugFri, 13 Mar 2015 12:35:25 GMTBarefoot ComputingThis Barefoot Computing resource builds on the ‘Maths quiz with selection’ learning activities which should be undertaken first. <br />
<br />
It involves improving an existing Scratch maths quiz and adding score-keeping using variables – a quiz Scratch file is provided for students who do not have access to one they made themselves. <br />
<br />
The concept of variables is covered in-depth before they are introduced to using variables in Scratch – the children may benefit from using the ‘variables unplugged’ activity before attempting this one. They are asked to consider a scoring algorithm before adding it to the program, and are free to develop their own scoring system. They also learn about initialising programs through experience. <br />
<br />
Scratch files for main and extension tasks are included and a help sheet explains how to use the new commands. The extension tasks also includes adding a timer to the quiz. <br />
<br />
A wide range of programming and computational thinking concepts and approaches is included, and the activity is well suited to formal or informal assessmentScratch Maths Quiz VariablesScratch Maths Quiz Variables
http://stem.org.uk/rxduf
http://stem.org.uk/rxdufhttp://stem.org.uk/rxdufFri, 13 Mar 2015 12:21:22 GMTBarefoot ComputingThis Barefoot Computing resource for upper-primary computing lessons uses the creation of a Scratch maths quiz as a basis for learning about algorithms using selection. <br />
<br />
Children are asked to create an algorithm that mirrors the quiz given orally by the teacher. Once they have developed the algorithm it is programmed using Scratch – either online or offline.<br />
<br />
This collaborative tasks involves many of the concepts and approaches of computational thinking, and is suitable for children with some prior experience of Scratch programming. The resource includes Scratch files to aid both the main and extension tasks. <br />
<br />
Formal and informal assessment of understanding and programming skills are well suited to this task.Scratch Maths Quiz SelectionScratch Maths Quiz Selection
http://stem.org.uk/rxdue
http://stem.org.uk/rxduehttp://stem.org.uk/rxdueFri, 13 Mar 2015 12:11:01 GMTBarefoot ComputingThis e-book gives an introduction to programming in the BASIC language for middle to high school students. It can be used as:<br />
<br />
• a nine or 18 week-long introduction to programming<br />
<br />
• a brief introduction to programming concepts<br />
<br />
• an introduction to data structures for non-programmers<br />
<br />
• a brief programming project for database or networking courses. <br />
<br />
The book uses the freely-available BASIC-256 language, starting with fundamentals including navigation of the programming interface. The chapters cover:<br />
<br />
• Drawing basic shapes<br />
• Sound and music<br />
• Computational thinking<br />
• String operations and input<br />
• Selection and logic<br />
• Loops<br />
• Custom graphics, images and sprites<br />
• Functions and subroutines<br />
• Mouse and keyboard control<br />
• Printing<br />
• Arrays and lists<br />
• Maths operations<br />
• Files<br />
• Error handling<br />
• Database connections<br />
• Network operations<br />
<br />
The e-book is suitable for classroom use or for independent study.<br />
<br />
This resource was provided by James M. Reneau.So You Want to Learn to Program?So You Want to Learn to Program?
http://stem.org.uk/rxdud
http://stem.org.uk/rxdudhttp://stem.org.uk/rxdudFri, 13 Mar 2015 11:59:04 GMTJames M. Reneau, Ph.D.Using the school network as a learning resource, this Barefoot Computing resource for primary schools introduces networked devices and the hardware infrastructure used to connect them.<br />
<br />
Children carry out a ‘treasure hunt’, searching for common networked devices such as switches, servers and printers. After mapping these onto a sketch of the school, they are asked to match the devices to a description of their function. <br />
<br />
Reference is also made to off-site infrastructure such as telecommunications cabinets, which may be located near to school.Network HuntNetwork Hunt
http://stem.org.uk/rxduc
http://stem.org.uk/rxduchttp://stem.org.uk/rxducFri, 13 Mar 2015 11:59:03 GMTBarefoot ComputingThis computing resource for primary schools introduces the concept of decomposition through dance. <br />
<br />
Using combinations of hand-jive, clapping or tutting, the lesson demonstrates how complex sequences of instructions (algorithms) can be broken down into smaller chunks. <br />
<br />
The children are challenged to look for patterns, using commands such as ‘repeat’ to simplify the instructions they develop by observing. They are then asked to create their own algorithms – again using dance and other fun activities – and to introduce more logic operations such as while and if…then…else. <br />
<br />
The activity includes some informal assessment opportunities.Decomposition UnpluggedDecomposition Unplugged
http://stem.org.uk/rxdub
http://stem.org.uk/rxdubhttp://stem.org.uk/rxdubFri, 13 Mar 2015 11:56:07 GMTBarefoot ComputingThis short activity for primary school computing uses art to introduce the concept of abstraction.<br />
<br />
During a ‘guess what’ game the children are asked to represent a word on a card using drawing or modelling – in doing so they unconsciously concentrate on just the most important aspects of the idea they are representing. <br />
<br />
The teacher draws out the thinking behind their representations and then leads discussion of computer software that represents complex real systems such as a driving game. By highlighting what is included in the computer model and what isn’t, the idea of abstraction is embedded.Abstraction UnpluggedAbstraction Unplugged
http://stem.org.uk/rxdu9
http://stem.org.uk/rxdu9http://stem.org.uk/rxdu9Fri, 13 Mar 2015 11:34:44 GMTBarefoot ComputingThis Astro-Pi resource for upper-primary and lower-secondary schools looks at water as a scarce resource on Earth and in space, how it is used by the human body and how it is recycled on the International Space Station (ISS). Parallels with the terrestrial water cycle are also made. <br />
<br />
The lesson activities also show how water can support the (unwanted) growth of microorganisms in space, and why this can be a problem. <br />
<br />
Also, impure water can be shown to conduct electricity - this is then related to the dangers posed to the large amount of electrical equipment on the ISS. <br />
<br />
This resource can be used to enhance the teaching of science, as well as in the preparation of team entries to the Astro-Pi Raspberry Pi competition.Every Drop Is PreciousEvery Drop Is Precious
http://stem.org.uk/rxdu8
http://stem.org.uk/rxdu8http://stem.org.uk/rxdu8Thu, 12 Mar 2015 12:08:43 GMTesero-ukThe International Space Station (ISS) is under constant threat from objects moving at speeds not often seen here on Earth. Space junk and micrometeoroids travel many kilometers each second, testing the impact shielding that protects the astronaut inhabitants. <br />
<br />
This Astro-Pi resource for secondary schools touches on equations and graphs of motion, and looks at how forces can lead to changes in the shape and motion of objects. As well as being appropriate for enhancing teaching in science it sufficiently prepares teams of students for entry into the Astro-Pi Raspberry Pi competition. With the Astro-Pi add-on board they can use the accelerometer, gyroscope and magnetic field sensors to provide information about the motion of objects - including the ISS.Dodging BulletsDodging Bullets
http://stem.org.uk/rxdu7
http://stem.org.uk/rxdu7http://stem.org.uk/rxdu7Thu, 12 Mar 2015 11:52:38 GMTesero-ukFrom the Triple Science Support Programme, this resource looks at key aspects of numeracy which have been shown to limit the progress and outcomes of students at GCSE and explores how students’ skills can be developed during the delivery of triple science.<br />
<br />
Each page contains activities which enable a teacher to explore and reflect on different aspects of numeracy that are important in science so as to enable teachers to develop a curriculum which is effective and appropriate.<br />
<br />
Some activities could be used to stimulate discussion and development with a science department meeting.Enhancing Numeracy in Triple ScienceEnhancing Numeracy in Triple Science
http://stem.org.uk/rxdu6
http://stem.org.uk/rxdu6http://stem.org.uk/rxdu6Wed, 11 Mar 2015 15:44:37 GMTTSSPFrom the Triple Science Support Programme, this resource considers how to create an action plan to develop reading, speaking and writing skills in science.Enhancing Literacy in Triple Science Chapter 4: Self-evaluation and Next StepsEnhancing Literacy in Triple Science Chapter 4: Self-evaluation and Next Steps
http://stem.org.uk/rxdu5
http://stem.org.uk/rxdu5http://stem.org.uk/rxdu5Mon, 09 Mar 2015 15:23:55 GMTTSSPFrom the Triple Science Support Programme, this resource looks at developing writing skills in science. It considers the purpose of writing in science, explores how well writing tasks support students and how to challenge the most able. Included are teaching strategies and resources to support progression in writing and to link research skills and writing.Enhancing Literacy in Triple Science Chapter 3: Developing Writing in ScienceEnhancing Literacy in Triple Science Chapter 3: Developing Writing in Science
http://stem.org.uk/rxdu3
http://stem.org.uk/rxdu3http://stem.org.uk/rxdu3Mon, 09 Mar 2015 14:22:48 GMTTSSPThis Catalyst article introduces Michael Pocock, an ecologist who surveys UK environments and constructs food chains of the species he identifies.<br />
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The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
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Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.UK EcologistUK Ecologist
http://stem.org.uk/rxdu2
http://stem.org.uk/rxdu2http://stem.org.uk/rxdu2Thu, 05 Mar 2015 12:28:40 GMTMichael PocockThis Catalyst article investigates osmosis: when water enters or leaves plant tissue (raw potato) according to the concentration of water in its surroundings.<br />
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The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Water Movement in PotatoesWater Movement in Potatoes
http://stem.org.uk/rxdtz
http://stem.org.uk/rxdtzhttp://stem.org.uk/rxdtzThu, 05 Mar 2015 12:26:29 GMTVicky WongThis Catalyst article investigates whether airships are making a comeback. The Airlander is an airship which can be used for transporting heavy loads over long distances.<br />
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The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Are Airships Making a Comeback?Are Airships Making a Comeback?
http://stem.org.uk/rxdty
http://stem.org.uk/rxdtyhttp://stem.org.uk/rxdtyThu, 05 Mar 2015 12:24:28 GMTMike FollowsThis Catalyst article investigates how plants can be grown in orbiting spacecraft and how this may be useful in future manned space missions.<br />
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The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Gardens in the SkyGardens in the Sky
http://stem.org.uk/rxdtx
http://stem.org.uk/rxdtxhttp://stem.org.uk/rxdtxThu, 05 Mar 2015 12:22:17 GMTSophie HarringtonThis Catalyst article investigates the launch of the the Philae lander from the Rosetta spacecraft and its landing on Comet 67P.<br />
<br />
The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.The Landing - Philae Touches DownThe Landing - Philae Touches Down
http://stem.org.uk/rxdtw
http://stem.org.uk/rxdtwhttp://stem.org.uk/rxdtwThu, 05 Mar 2015 12:20:34 GMTTom LyonsThis Catalyst article investigates mercury which is a poison and how it can be removed from natural gas using ionic liquids.<br />
<br />
The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Making the World SaferMaking the World Safer
http://stem.org.uk/rxdtv
http://stem.org.uk/rxdtvhttp://stem.org.uk/rxdtvThu, 05 Mar 2015 12:17:33 GMTMaggel DeetlefsIn this Catalyst article, David Edwards studies ways of reducing the impact of human activities in tropical regions.<br />
<br />
The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.Conservation BiologistConservation Biologist
http://stem.org.uk/rxdtu
http://stem.org.uk/rxdtuhttp://stem.org.uk/rxdtuThu, 05 Mar 2015 12:14:49 GMTDavid EdwardsThis Catalyst article investigates pollutants in the Arctic. Scientists are monitoring the accumulation of synthetic chemicals which are polluting the Arctic environment.<br />
<br />
The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.<br />
<br />
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from <a target="_blank" href="http://www.mindsetsonline.co.uk/Site/catalyst">Mindsets</a>.From Pollutants in Whale Blubber to CSI ChemistsFrom Pollutants in Whale Blubber to CSI Chemists
http://stem.org.uk/rxdtt
http://stem.org.uk/rxdtthttp://stem.org.uk/rxdttThu, 05 Mar 2015 12:08:30 GMTPernilla CarlssonFor teachers of secondary school science, this Astro-Pi physics resource looks at gravity, microgravity and weightlessness. <br />
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Students learn the fundamentals of gravitational force and potential energy, and apply these ideas to projectiles and orbiting bodies - particularly the International Space Station (ISS). <br />
<br />
Using video footage from the European Space Agency (ESA) and activities from the ESERO and National STEM Centre collections, students gain an insight into life in microgravity and how the ISS stays in orbit... with a little help from visitors. <br />
<br />
The activities would adequately prepare teams for entry to the Astro-Pi Rasperry Pi competition.Which Way Is Up?Which Way Is Up?
http://stem.org.uk/rxdts
http://stem.org.uk/rxdtshttp://stem.org.uk/rxdtsWed, 04 Mar 2015 16:25:28 GMTesero-ukCombing satellite and ground-based imagery, this cross-curricular learning resource for primary teachers explores planet Earth from a range of perspectives. <br />
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The activities are intended to build map skills and recognition of many physical geography features in familiar and unfamiliar locations. <br />
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Mathematics activities focused on scale and using coordinates sit alongside digital literacy tasks requiring analysis of web-based sources for research. <br />
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Children will also learn about the important role played by satellites in disaster relief.<br />
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Permission to use the satellite images have been kindly granted by Airbus Defence & Space.Imaging the EarthImaging the Earth
http://stem.org.uk/rxdtr
http://stem.org.uk/rxdtrhttp://stem.org.uk/rxdtrWed, 04 Mar 2015 15:14:06 GMTESERO-UKFor teachers of advanced physics who may have an interest in computing, this Astro-Pi activity explores radiation in space and considers how it might affect human health.<br />
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Humans currently live aboard the International Space Station, where they are exposed to radiation emanating from the Sun and from cosmic ray sources in deep space. These activities help students learn about the types of ionising radiation, how they are absorbed or transmitted, and what effect they can have on the health of astronauts. <br />
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Students will develop, too, an understanding of the huge distances travelled by these ionising particles and waves, and how the Earth's magnetic field protects us from their most dangerous effects. <br />
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European Space Agency videos and web resources combine with other learning activities from across the ESERO and National STEM Centre collections to provide a suitable basis for projects using the Raspberry Pi computer.Space RadiationSpace Radiation
http://stem.org.uk/rxdtq
http://stem.org.uk/rxdtqhttp://stem.org.uk/rxdtqWed, 04 Mar 2015 14:42:26 GMTesero-ukThese post-16 lesson plans look at Darwin’s pigeon breeding experiments and how they revealed the biology of inheritance and selection. Students will:<br />
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• Compare natural and artificial selection and be able to critically explain the difference between the two.<br />
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• Explore how Darwin used selective breeding to develop his model of species change.<br />
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• Investigate Mendelian genetics in the context of Darwin’s pigeon breeding experiments and solve genetic problems.<br />
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• Investigate the effect of interactions between genetic loci in the context of Darwin’s breeding experiments and solve genetic problems involving epistasis.<br />
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• Apply a statistical test to genetic data.<br />
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• Investigate the contribution of human activity on selection pressures.<br />
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• Investigate the role that geographical and reproductive isolation may play in the development of a new species and critically evaluate authentic data supporting speciation.<br />
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• Explain the effect inbreeding, immigration and genetic drift may have on gene allele frequencies.Funky PigeonsFunky Pigeons
http://stem.org.uk/rxdtm
http://stem.org.uk/rxdtmhttp://stem.org.uk/rxdtmTue, 03 Mar 2015 11:02:46 GMTLinnean SocietyThis resource provides background information for students about the structure of DNA, DNA replication, genetic engineering, cloning, genetic testing and DNA fingerprinting.<br />
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The activities for students include a practical activity where students extract their own DNA from cheek epithelial cells or plant cells, a research task about the history of DNA and building a model of DNA.Discovering DNADiscovering DNA
http://stem.org.uk/rxdtk
http://stem.org.uk/rxdtkhttp://stem.org.uk/rxdtkTue, 03 Mar 2015 10:56:49 GMTLinnean SocietyThere are four posters in this resource covering the following areas of the biology curriculum:<br />
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Biodiversity: gives an overview of what biodiversity is, how it is measured and the threats to biodiversity<br />
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Classification: describes the main features of classification and the binomial system of nomenclature<br />
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Conservation: looks at reasons for conservation, in situ and ex situ conservation, international conservation agreements and the role of zoos<br />
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Evolution: describes the theory of evolution, continuous and discontinuous variation, adaptation and the evidence for evolutionLinnean Society PostersLinnean Society Posters
http://stem.org.uk/rxdtj
http://stem.org.uk/rxdtjhttp://stem.org.uk/rxdtjTue, 03 Mar 2015 10:45:27 GMTLinnean SocietyThis activity examines the meanings of the terms reduce, reuse and recycle. Students consider the efficacy of recycling and reusing and whether they produce the desired results of reducing waste and energy requirements and minimising primary resource use. They then compare the impacts of recycling aluminium to obtaining the metal from its ore. <br />
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Finally, students learn about the work of a girl in Nepal who works in plastic recycling and reuse.<br />
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There is also the opportunity for students to reuse plastic bags or aluminium cans to make new and useful objectsRecycle or Reuse?Recycle or Reuse?
http://stem.org.uk/rxdth
http://stem.org.uk/rxdthhttp://stem.org.uk/rxdthTue, 03 Mar 2015 10:31:13 GMTPractical ActionIn this activity students discover how a Tanzanian initiative reduced iodine deficiency diseases, and look at lessons the UK can learn from the example of this African nation. According to recent reports, up to 70% of British young people do not take in enough iodine. Iodine deficiency causes goiter and brain damage, and may reduce IQ.<br />
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During the lesson, students:<br />
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• Find out about the symptoms of iodine deficiency<br />
• Apply knowledge about elements and compounds <br />
• Evaluate evidence to decide whether UK salt should be iodisedIodine InitiativeIodine Initiative
http://stem.org.uk/rxdtg
http://stem.org.uk/rxdtghttp://stem.org.uk/rxdtgTue, 03 Mar 2015 10:28:54 GMTPractical ActionIn this lesson, students devise their own flood warning device and create a technical brief for an international audience using recognised circuit symbols. They also consider how people both here and in Nepal can best prepare for floods.<br />
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Heavy monsoon rains can devastate communities in Nepal. The severe flooding leaves families destitute with homes, stored food, cultivated land and livestock destroyed. Lives are frequently lost. But now, with advanced warning systems in place in some areas, communities are able to prepare themselves and lives are being saved. <br />
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During the lesson, students will:<br />
<br />
• use their understanding of conductors and simple circuits to design a flood alarm circuit <br />
• use their understanding of series and parallel circuits to create a combined warning and alarm circuit<br />
• use circuit symbols to create a technical brief for their designFlood AlertFlood Alert
http://stem.org.uk/rxdtf
http://stem.org.uk/rxdtfhttp://stem.org.uk/rxdtfTue, 03 Mar 2015 10:25:38 GMTPractical ActionThis teaching resource examines the role of science and technology in preserving food as an important part of global food security. It considers the scale of food spoilage across the globe and the consequences of this for people and their diets.<br />
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Students investigate simple ways of preserving food relating their scientific understanding of microbial growth to food spoilage by microbes. <br />
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They also investigate how salt can be used to preserve a range of foods by dehydrating microbes osmotically.Food PreservationFood Preservation
http://stem.org.uk/rxdte
http://stem.org.uk/rxdtehttp://stem.org.uk/rxdteMon, 02 Mar 2015 10:38:57 GMTPractical ActionThe Rosetta spacecraft was sent on a mission to comet 67P Churyumov-Gerasimenko. Part of its mission was to deploy a lander, Philae, on the surface of the comet. The resource contains seven activities themed around the mission:<br />
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<b>The Planets</b><br />
Using interactive games, children will learn to recognise the names of the eight planets in the Solar System and they will learn that planets revolve around the Sun. This introductory lesson will give children an understanding of planets in the Solar System, in preparation for further topics on other objects, such as asteroids and comets.<br />
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<b>Falling Stars</b><br />
Meteorites are heated on their path through the atmosphere of the Earth. Using this context, children will learn the difference between a star and a ‘falling star’, and how friction can cause heating effects. The activity suggests the use of meteorite samples, which can be borrowed for short loan periods.<br />
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<b>Meteorites</b><br />
In this activity, students learn about craters that can be created by impacts from space. The resource describes an activity to measure the size of craters by varying the mass of balls, or by varying the height dropped into sand. Children can create graphs to present their findings. <br />
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<b>Soft Landing</b><br />
This activity uses the context of Philae's landing to: explain why unsupported objects fall towards Earth; explain why spacecraft need to make a soft landing; explain the meaning of speed and how it is calculated; design and test a landing device for an egg.<br />
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<b>Weight on other Celestial Bodies</b><br />
The series of activities in this resource helps children to understand the difference between mass and weight. They learn that weight is a force due to the gravitational pull of the celestial body, and so weight is different on the Earth compared to other planets and Comet 67P, which Rosetta is orbiting.<br />
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<b>Distances in the Solar System</b><br />
In this resource, children are guided through activities which will help them to use models to understand the scale of the solar system. By considering journey times using everyday modes of transport, such as a bicycle, the vast distances of the Solar System can be explored. Different ideas are suggested for building scale models, inside and outside the classroom.<br />
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<b>What use is Solar Power?</b><br />
Solar power is vital to the operation of satellites and to the Rosetta spacecraft. This activity requires children to make a solar powered vehicle, using solar panels, a motor and gear and other simple materials. The children will learn how the motor must be connected in a circuit to operate, and the light level must be sufficiently high to enable the wheels to turn.Rosetta - Primary Resource BookRosetta - Primary Resource Book
http://stem.org.uk/rxdtd
http://stem.org.uk/rxdtdhttp://stem.org.uk/rxdtdFri, 27 Feb 2015 14:43:00 GMTESERO-UKThis series of Marvin and Milo cards have been pulled together for the International Year of Light 2015. They include eight simple experiments that can be performed at home that link in to the theme of light, using:<br />
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- A torch and a bottle to show total internal reflection<br />
- A glass of water to make a lens<br />
- Milk and water to show the scattering of light<br />
- Making a light bulb light up with a balloon (static electricity)<br />
- Tonic water to show fluorescence<br />
- Mirrors and binocular vision<br />
- Making a rainbow with a hosepipe<br />
- Refraction of light using vegetable oilDo Try This at Home: the Light CollectionDo Try This at Home: the Light Collection
http://stem.org.uk/rxdtc
http://stem.org.uk/rxdtchttp://stem.org.uk/rxdtcThu, 26 Feb 2015 11:17:18 GMTIoPFrom the Triple Science Support Programme, this resource explores ways of developing talk in science. It explores the purpose of speaking and listening in science, considers what students think of group talk and and reflects on how group talk can support bilingual students. Included are teaching strategies and resources to bridge the gap between talk and text.Enhancing Literacy in Triple Science Chapter 2: Developing Talk in ScienceEnhancing Literacy in Triple Science Chapter 2: Developing Talk in Science
http://stem.org.uk/rxdtb
http://stem.org.uk/rxdtbhttp://stem.org.uk/rxdtbWed, 25 Feb 2015 16:20:25 GMTTSSPFrom the Triple Science Support Programme, this resource explores the ways and purposes of reading in science. It looks at the government’s expectations of reading in lessons, how to stretch and support students’ reading and strategies for focussing reading. Included are teaching strategies and resources to support reading and develop students’ understanding of scientific terms.Enhancing Literacy in Triple Science Chapter 1: Developing Reading in ScienceEnhancing Literacy in Triple Science Chapter 1: Developing Reading in Science
http://stem.org.uk/rxdta
http://stem.org.uk/rxdtahttp://stem.org.uk/rxdtaWed, 25 Feb 2015 15:19:17 GMTTSSPThis ibook from the Triple Science Support Programme consists of six chapters and they include:<br />
<br />
<b>Chapter 1: exploring the current curriculum in your school</b> <br />
presents background information and activities which enable subject leaders to understand the statutory requirements related to science provision and to consider these in relation to the curriculum provision within their own school. The strengths and weaknesses of current provision are analysed, considering the different cohorts and ability ranges, as well as the driving factors of curriculum design and the role of student choice in learning pathways.<br />
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<b>Chapter 2: the curriculum in a national context</b><br />
allows subject leaders to consider the broad range of policy which surrounds the recent developments regarding the curriculum and assessment in science, and reflect on the background developments which preceded the recent policy decisions.<br />
The activities provide the opportunity to reflect on how to develop a broad and balanced curriculum and to develop an awareness of progression in key concepts.<br />
<br />
<b>Chapter 3: potential issues arising from changing the curriculum model</b><br />
considers the timetable constraints which limit the number of students following a triple science pathway and explore ways to overcome them. Different approaches to staffing triple science are explored as well as recent and current practice in exam entry and the implications of changing to a new curriculum model.<br />
<br />
<b>Chapter 4: triple science in the changing landscape</b><br />
looks at possible curriculum models for delivering triple science and reflects on some of the big questions about the delivery of triple science. Case studies provide the opportunity to consider the experiences of other schools and compare practice.<br />
<br />
<b>Chapter 5: developing a new curriculum model for science</b><br />
provides subject leaders with the opportunity to explore the process of changing their science curriculum model, considering the reasons for change, when the change will be implemented and who needs to be involved. Ways of gathering feedback from students to inform decisions are explored.<br />
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<b>Chapter 6: self-evaluation and next steps</b>Curriculum PlanningCurriculum Planning
http://stem.org.uk/rxdt4
http://stem.org.uk/rxdt4http://stem.org.uk/rxdt4Tue, 24 Feb 2015 14:19:48 GMTTSSPUsing a spreadsheet as a grid of 'pixels', this computing activity teachers how 1's and 0's can store image data. The classroom exercises use images with increasing pixel resolution, looking at how this affects the clarity of the image. Moving from black-and-white images, the students then use grids of colour values to represent colour pictures.<br />
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The resource includes a starter activity, teacher-led learning activity and homework knowledge-consolidation task.Data Representation: Bitmap ImagesData Representation: Bitmap Images
http://stem.org.uk/rxdt3
http://stem.org.uk/rxdt3http://stem.org.uk/rxdt3Mon, 23 Feb 2015 10:56:25 GMTNichola WilkinThis series of five one-hour lessons covers computer networks at secondary-school level. The objectives of the lessons are:<br />
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• Describe what a network is, the difference between a LAN and a WAN and identify three network topologies.<br />
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• Describe pieces of hardware that are needed in a network.<br />
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• Explain what an IP address is used for.<br />
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• Explain what HTML, PDF files and GIF files are used for.<br />
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• Student then research and present on the topic.<br />
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The resource includes teacher presentation files, student activity sheets and homework tasks. An end-of-unit assessment is provided also.NetworksNetworks
http://stem.org.uk/rxdt2
http://stem.org.uk/rxdt2http://stem.org.uk/rxdt2Mon, 23 Feb 2015 10:41:37 GMTNichola WilkinThis series of three lessons introduces Python programming to students in secondary school. <br />
<br />
The lesson objectives include:<br />
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• Creating simple code including the input and print scripts<br />
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• Using "If statements" to make a decision<br />
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• Using the random function in programs<br />
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Detailed lesson plans, teacher presentation files, activity sheets and homework tasks are included in the resource. An end-of-unit teacher assessment grid provides pupil levels.PythonPython
http://stem.org.uk/rxdsz
http://stem.org.uk/rxdszhttp://stem.org.uk/rxdszMon, 23 Feb 2015 10:19:43 GMTNichola WilkinA ten-lesson sequence progressing from the basics of Scratch through to creating simple games. It includes: <br />
<br />
• drawing shapes and using repeats<br />
• accepting keyboard input to control the movement of sprites<br />
• planning algorithms using flow diagrams and executing them in Scratch<br />
• importing and using sprites<br />
• programming for interactivity<br />
• students evaluating their work against their own plans and criteria, and peer-evaluating each other.<br />
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The resource includes teacher presentations, activity sheets, code examples, evaluation sheets and homework tasks. A teacher-assessment grid is also provided with levels.ScratchScratch
http://stem.org.uk/rxdsy
http://stem.org.uk/rxdsyhttp://stem.org.uk/rxdsyFri, 20 Feb 2015 12:57:13 GMTNichola WilkinThis classroom resource for secondary computing lessons outlines the history of development of computers. It covers thousands of years of history, including:<br />
<br />
• the abacus<br />
• log tables<br />
• the calculators of Pascal and Leibnitz<br />
• Jacquard looms<br />
• Babbage's Difference Engine and Lady Ada's role in programming<br />
• through wartime and post-war developments in technology and theory.<br />
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The lesson comes right up to date, looking at the growth of Microsoft, Apple and Google.<br />
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Included are a word-search and homework as well as a classroom activity sheet.History of ComputersHistory of Computers
http://stem.org.uk/rxdsx
http://stem.org.uk/rxdsxhttp://stem.org.uk/rxdsxFri, 20 Feb 2015 11:47:03 GMTNichola WilkinThis four-lesson sequence teaches students to create multimedia for a given purpose. <br />
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Using digital cameras and special desktop publishing software, students create a comic-book representation of the life of William Shakespeare. They are required to plan and execute the project from the beginning and to evaluate their own work and that of others. <br />
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Teacher presentation files for each lesson are accompanied by excerpts from Shakespeare's works, homework sheets and individual as well as team planning templates. <br />
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A unit mark book is also provided, as is a self-assessment tick-sheet.Shakespeare Comic BookShakespeare Comic Book
http://stem.org.uk/rxdsw
http://stem.org.uk/rxdswhttp://stem.org.uk/rxdswFri, 20 Feb 2015 11:11:38 GMTNichola WilkinThis unit of six lessons does not assume any prior programming knowledge and covers the following guidelines in the National Curriculum:<br />
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• Design - write and debug programs that accomplish specific goals, including controlling or simulating physical systems; solve problems by decomposing them into smaller parts.<br />
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• Use sequence - selection, and repetition in programs; work with variables and various forms of input and output.<br />
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• Use logical reasoning to explain how some simple algorithms work and to detect and correct errors in algorithms and programs.<br />
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It is suitable for students with no experience of programming. <br />
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Each lesson includes a placemat with different learning activities, such as word-searches and comprehension questions.<br />
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A teacher presentation file is also included with each lesson, and several example Scratch files are provided (for the offline Scratch editor). <br />
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An answer book accompanies the teaching materials, providing quick guidance to the teacher. A self-assessment sheet for students, and a teacher marksheet in Excel are also supplied.Scratch BeginnersScratch Beginners
http://stem.org.uk/rxdsv
http://stem.org.uk/rxdsvhttp://stem.org.uk/rxdsvThu, 19 Feb 2015 16:26:58 GMTNichola WilkinThis excel workbook shows how to construct a stem and leaf diagram. The first sheet has some raw data at the top and a blank stem and leaf diagram with appropriate key is shown below. The cells in the stem and leaf diagram can be revealed or hidden and by clicking on one of the numbers in the stem the corresponding raw data items are highlighted. The next two sheets deal with other data including decimals in a similar manner.<br />
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There is another sheet of questions on this topic and box and whisker diagrams which may be suitable for duplication.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Stem and LeafStem and Leaf
http://stem.org.uk/rxdsp
http://stem.org.uk/rxdsphttp://stem.org.uk/rxdspFri, 13 Feb 2015 12:30:26 GMTMichael BawtreeThe first sheet of this excel file shows a frequency table for up to four different colours. Sometimes the angle 359⁰ or 361⁰ is shown in the table rather than 360⁰ and this can be used to aid discussion about rounding. Students need to calculate the angles so that a pie chart can be drawn. The pie chart can be shown onscreen. <br />
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The second sheet is intended to be duplicated to allow students to measure angles and use those to answer questions.<br />
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The next three sheets have fixed values. In each sheet a frequency table relating to a survey is shown and the angles can be revealed. The aim is to get students to calculate the frequency relating to each of the given angles and hence find the total number of people surveyed. <br />
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The final interactive sheet shows the results of a survey expressed as percentages. Students need to calculate the angles in order to draw a pie chart. <br />
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There are seven more sheets of questions which may be suitable for use in the classroom.<br />
<br />
<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Pie ChartsPie Charts
http://stem.org.uk/rxdso
http://stem.org.uk/rxdsohttp://stem.org.uk/rxdsoFri, 13 Feb 2015 12:28:47 GMTMichael BawtreeThe first sheet of this excel file shows the number of passengers per flight from London to Paris. The raw data is shown in a grouped frequency table and the midpoint of each group can be revealed as well as each stage in the calculation of the estimate of the mean. The next two sheets each show two sets of data which are dealt with in the same manner so that the calculated estimates of the mean can be compared.<br />
<br />
There are seven more sheets of questions which may be suitable for use in the classroom.<br />
<br />
<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Data Sets: Calculating an Estimate of the MeanData Sets: Calculating an Estimate of the Mean
http://stem.org.uk/rxdsn
http://stem.org.uk/rxdsnhttp://stem.org.uk/rxdsnFri, 13 Feb 2015 12:27:07 GMTMichael BawtreeThe first two sheets of this excel file shows sets of data about the weight of cows in two herds. The cumulative frequencies can be revealed and the quartiles and median are shown derived from the cumulative frequency graph. The next sheet shows the comparison of the two herds as shown by the box and whisker diagrams. The final interactive sheet shows the travel times to work in a grouped frequency table. The cumulative frequencies can be revealed and the quartiles and median are derived from the cumulative frequency graph.<br />
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There are 11 more sheets of questions which may be suitable for use in the classroom.<br />
<br />
<b>Note:</b> this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Cumulative FrequencyCumulative Frequency
http://stem.org.uk/rxdsk
http://stem.org.uk/rxdskhttp://stem.org.uk/rxdskFri, 13 Feb 2015 12:24:44 GMTMichael BawtreeThe first sheet of this excel file shows a set of data in a scatter plot. The line of best fit can be drawn and a description of the type of correlation can be revealed along with the equation of the trend line. The other sheet shows the value of cars at various ages. The scatter plot shows the data and there are a few questions to be answered about the correlation and based on the use of the line of best fit. <br />
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There are three more sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.CorrelationCorrelation
http://stem.org.uk/rxdsj
http://stem.org.uk/rxdsjhttp://stem.org.uk/rxdsjFri, 13 Feb 2015 12:23:37 GMTMichael BawtreeThe first sheet of this excel file shows a box and whisker diagram where the defining points can be altered. The second sheet shows two box and whisker diagrams to allow comparison between distributions. The next sheet shows a box and whisker diagram for students to read off the lowest value, the median and quartiles and the maximum value. Answers can be revealed and new diagrams shown. The final sheet shows box plots for two distributions so that they can be compared. <br />
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There are three more sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Box and WhiskerBox and Whisker
http://stem.org.uk/rxdsh
http://stem.org.uk/rxdshhttp://stem.org.uk/rxdshFri, 13 Feb 2015 12:22:23 GMTMichael BawtreeThis resource contains two excel files dealing with measures of central tendency, trend and spread for sets of discrete data. <br />
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<b>Averages and Range</b><br />
The first interactive sheet shows a set of nine data items which can be shown sorted into ascending order. The values of mean, median, mode, range, quartiles and inter-quartile range can be revealed. <br />
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The next two sheets deal with sets of 10 and 20 items of data in the same way.<br />
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The final sheet shows sets of five data items and students either need to calculate mean, median and range or use one of those statistics in order to find the missing data items. <br />
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There are five more sheets of questions which may be suitable for use in the classroom.<br />
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<b>Moving Averages</b> <br />
The first interactive sheet generates sets of 12 data items which are shown on a graph in the form of a time series. The 3 point moving averages are calculated and plotted on the same diagram and the trend line can be superimposed. The next sheets deal with 4 and 5 point moving averages in the same way. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Averages and Moving AveragesAverages and Moving Averages
http://stem.org.uk/rxdsg
http://stem.org.uk/rxdsghttp://stem.org.uk/rxdsgFri, 13 Feb 2015 12:20:44 GMTMichael BawtreeThis interactive excel file has separate sheets which deal with inverse proportion where the functions are linear, quadratic and square root. Each sheet begins with a statement of the proportional relationship and values so that the constant can be calculated and the equation found. The student then substitutes given values in order to answer further questions. Tables of values and graphs illustrate each of the inversely proportional relationships. Answers can be revealed and new questions generated. <br />
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The final interactive sheet shows sets of mixed questions on inverse proportion with answers available.<br />
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There are a further four sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Inverse ProportionInverse Proportion
http://stem.org.uk/rxdsf
http://stem.org.uk/rxdsfhttp://stem.org.uk/rxdsfFri, 13 Feb 2015 12:18:15 GMTMichael BawtreeThe first interactive sheet shows a calculator for Simple Interest where the amount invested, the rate of interest and the term can be altered. The next sheet shows sets of five questions on Simple Interest to be answered with the help of calculators. Answers can be revealed and new questions generated. <br />
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The next interactive sheet shows the Compound Interest formula and calculator where the amount invested, the rate of interest and the term can be altered. This is followed by a sheet showing sets of five questions on Compound Interest to be answered with the help of calculators.<br />
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The final interactive sheet deals with the question as to whether there is any advantage in having interest added more frequently. This leads towards the constant e.<br />
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There are a further two sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Interest: Simple and CompoundInterest: Simple and Compound
http://stem.org.uk/rxdse
http://stem.org.uk/rxdsehttp://stem.org.uk/rxdseFri, 13 Feb 2015 12:16:54 GMTMichael BawtreeThis interactive excel file has separate sheets which deal with direct proportion where the functions are linear, quadratic, cubic and square root. <br />
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Each sheet begins with a statement of the proportional relationship, the formula with the constant of proportionality and data so that the constant can be calculated. The student then substitutes given values in order to answer further questions. Tables of values and graphs illustrate each of the proportional relationships. Answers can be revealed and new questions generated. <br />
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The particular example leading to A=πr<sup>2</sup> is dealt with in a similar format on a separate sheet. <br />
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The final interactive sheet shows sets of mixed questions with answers available.<br />
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There are a further four sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Direct ProportionDirect Proportion
http://stem.org.uk/rxdsd
http://stem.org.uk/rxdsdhttp://stem.org.uk/rxdsdFri, 13 Feb 2015 12:15:46 GMTMichael BawtreeThis resource contains two interactive excel files dealing with the graphs of trigonometric functions. <br />
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<b>Trigonometry: X=cos, Y=sin</b><br />
The first three interactive sheets make use of a point on a unit circle to illustrate the relationship between the angle (turned clockwise or anticlockwise from the positive x axis) and the coordinates of the point. Each sheet has a picture of the circle, the angle and the coordinates expressed as sine or cosine of the angle and as a decimal. <br />
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The next sheet shows the graphs of sine and cosine and students need to use inverse trig functions to find the two values of the angle in the range 0⁰ to 360⁰. This is followed by a similar sheet where the graphs are for sine and cosine of angles in the range -180⁰ to +180⁰. The final interactive sheets deal with the 3 trig ratios for the special angles 30⁰, 60⁰ and 45⁰ and their associated angle on the unit square.<br />
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There are a further five sheets of questions which may be suitable for use in the classroom. <br />
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<b>Modelling: Depth of Water in a Tidal River</b><br />
This interactive excel program develops a model for depth of water in a tidal river based upon the sine curve. The first interactive sheet shows a cycle once or twice every 360 days. This is followed by a similar sheet showing the graph and formula for a cycle every 24 or 12 hours. <br />
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The sheet entitled "Tidal River" allows students to explore the graph of the water depth as they alter three parameters; the mean depth of water, the time of high tide and the difference between high and low tide. Students are able to reveal the function for this model. <br />
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The final interactive sheet allows students to explore the functions involved in the model and see the graph of these functions in the form D=asin[30(t-b)]+c. <br />
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There are a further five sheets of questions which may be suitable for use in the classroom. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines..Trigonometric GraphsTrigonometric Graphs
http://stem.org.uk/rxdsc
http://stem.org.uk/rxdschttp://stem.org.uk/rxdscFri, 13 Feb 2015 12:12:28 GMTMichael BawtreeThis resource contains two interactive excel files dealing with trigonometry in right angled triangles. Each interactive file has the same further 13 sheets of questions which may be suitable for use in the classroom. <br />
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<b>Trigonometry: Finding LENGTHS</b><br />
The first three sheets help students to identify the hypotenuse and the opposite and adjacent sides. Sine, cosine and tangent ratios are defined and shown on diagrams. The next sheet reminds students how to rearrange formulae in the form A=B/C in preparation for rearranging the equations involving the trigonometric ratios. The remaining sheets pose problems where students need to calculate lengths given another side and an angle. Answers can be revealed and new questions generated. The final interactive sheet requires students to find either lengths or angles using trigonometry.<br />
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<b>Trigonometry: Finding ANGLES</b><br />
This Excel file begins with two sheets which remind students of the names of the sides of a right angle triangle and the sine, cosine and tangent ratios. The next three interactive sheets each show triangles which have a horizontal and a vertical side. Given two of the sides students need to calculate the smaller and the larger angles in the triangle. Answers can be revealed and new questions generated.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Basic TrigonometryBasic Trigonometry
http://stem.org.uk/rxdsb
http://stem.org.uk/rxdsbhttp://stem.org.uk/rxdsbFri, 13 Feb 2015 12:10:23 GMTMichael BawtreeThe first sheet of this interactive excel file provides students with calculations to confirm that <sup>a</sup>/<sub>sinA</sub>=<sup>b</sup>/<sub>sinB</sub> etc. The next two sheets give sufficient information to allow students to calculate all the unknown lengths and angles of a given triangle. Answers can be revealed and new questions generated. The ambiguous case is illustrated and dealt with on a separate interactive sheet. <br />
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The next sheet requires students to be able to calculate areas of triangles. Further practice is given in a sheet showing a table of various pieces of information about lengths and angles of triangles so that other dimensions and the area can be calculated.<br />
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The final interactive sheet uses the formula for the area of a triangle and the Cosine Rule in a proof of Hero's Formula.<br />
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There are a further five sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Sine RuleSine Rule
http://stem.org.uk/rxdsa
http://stem.org.uk/rxdsahttp://stem.org.uk/rxdsaFri, 13 Feb 2015 12:08:53 GMTMichael BawtreeThis resource contains two excel files which encourage exploration of the background to Pythagoras' Theorem and give practice in its application. Each file contains the same nine sheets of questions which may be suitable for use in the classroom. <br />
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<b>Pythagoras</b><br />
This excel file contains sheets which illustrate and explore the background to Pythagoras' Theorem. The first sheet shows that squares can be in different orientations, some of them being shown on a coordinate grid. The next sheet shows one side of a square and students need to identify the possible coordinates of the remaining vertices. Then students are shown a square on a coordinate grid (where the orientation and size of the square can be altered) and the problem is to see if the area of a square is always a square number. The next sheet allows students to input square numbers and see the graph of y=x2 plotted. The final interactive sheets allow students to explore Pythagoras's Theorem using diagrams either shown on coordinate grids or with no numbers visible. <br />
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<b>Pythagoras: Using</b><br />
The first set of eight interactive sheets present problems involving lengths and areas related to rectangles, squares, isosceles triangles and rhombuses. Calculators need to be used and answers are given to one decimal place. The next interactive sheet deals with the 3D problem of finding the length of the longest stick in a box. The final sheet returns to 2D problems with the answers given to two decimal places. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.PythagorasPythagoras
http://stem.org.uk/rxds9
http://stem.org.uk/rxds9http://stem.org.uk/rxds9Fri, 13 Feb 2015 12:06:41 GMTMichael BawtreeThe first sheet of this interactive excel file shows a triangle ABC with the lengths of appropriate sides labelled a, b, and c. The six versions of the Cosine Rule are shown with each side and the cosine of each angle as the subject of the formula.<br />
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The next sheets require students to carry out calculations. One sheet shows a triangle with the lengths of two sides and the included angle given so that the remaining side can be calculated. The next sheet is about finding angles given the three sides. Answers can be revealed and new questions generated. <br />
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The final interactive sheet shows a table with pieces of information about lengths and angles of triangles so that other dimensions can be calculated.<br />
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There are a further four sheets of questions which may be suitable for use in the classroom.<br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Cosine RuleCosine Rule
http://stem.org.uk/rxds8
http://stem.org.uk/rxds8http://stem.org.uk/rxds8Fri, 13 Feb 2015 12:04:26 GMTMichael BawtreeThe first two interactive sheets deal with selecting objects from two bags. The outcomes are shown on tree diagrams and the probabilities can be revealed. <br />
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The next interactive sheet deals with the problem of passing through two sets of traffic lights with sets of questions beside the tree diagram. <br />
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The last interactive sheet is about the problem of sitting the driving test, and having up to three attempts where the probability of passing decreases after each attempt.<br />
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There are also eight sheets of questions which may be suitable for use in the classroom. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Tree DiagramsTree Diagrams
http://stem.org.uk/rxds7
http://stem.org.uk/rxds7http://stem.org.uk/rxds7Fri, 13 Feb 2015 12:02:11 GMTMichael BawtreeThe first three sheets of this interactive excel file show Venn Diagrams of two sets and allow the student to explore other sets based on their union, intersection and complements. By clicking on the Boolean Algebra expression the region is shown on the Venn Diagram. <br />
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The next interactive sheets illustrate sets based upon three sets and various combinations of unions, intersections and complements. <br />
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The next sheet lists the elements of a Universal set and the elements of two other sets. The elements are numerical values which can be generated to produce a new example. The elements in associated sets including complements and intersections can be revealed as is the Venn Diagram.<br />
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The final interactive sheet is similar to the previous one except that it deals with a Universal set and three other sets. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.Venn DiagramsVenn Diagrams
http://stem.org.uk/rxds6
http://stem.org.uk/rxds6http://stem.org.uk/rxds6Fri, 13 Feb 2015 12:00:27 GMTMichael BawtreeThis resource contains four interactive excel files dealing with:<br />
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<b>Probability Line and Simple Examples</b><br />
This excel file begins with the probability number line labelled with fractions, decimals and percentages. The next two interactive sheets pose problems about selecting a coloured ball from a bag with answers shown as a fraction, simplified fraction and percentage. Other sheets pose questions about selecting a letters from a given word and rolling a single die. The final interactive sheet shows the possibility space when two dice are thrown and the answers to the questions posed are shown as fractions and simplified fractions.<br />
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There are a further five sheets of questions which may be suitable for use in the classroom. <br />
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<b>Probability: Biased Coins</b><br />
This short interactive program illustrates the effect of bias when a number of coins are tossed. The first sheet deals with the experiment when 10 coins are tossed when the probability of getting a head can be altered. The probability of getting a particular number of heads is shown in a table (alongside the cumulative probability) and in a bar chart. The second interactive sheet deals with a similar experiment when 20 coins are tossed. <br />
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There are three more sheets of questions which may be suitable for use in the classroom. <br />
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<b>Probability: Relative Frequency</b><br />
This excel file simulates selecting an object from a given number of objects in a bag. The outcomes are shown in a tally chart and the problem is to predict how many of each coloured object there are in the bag. The contents of the bag can be revealed on a separate sheet.<br />
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<b>Probability: Two Events</b><br />
This interactive file starts gently with a sheet showing the 52 cards in a standard deck. Questions are posed about the probability of selecting a single card and answers can be revealed. The next two sheets deal with probabilities associated with selecting two cards, one with replacement and the other without replacement. The outcomes are shown on tree diagrams and the probabilities on each branch can be revealed. The problem of rolling two dice is similarly dealt with on the next two sheets with one of them using biased dice. The final interactive sheet uses a tree diagram to illustrate the solution to problems related to selection of objects from two different bags. <br />
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There are a further eight sheets of questions which may be suitable for use in the classroom. <br />
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<b>Note</b>: this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users' machines.ProbabilityProbability
http://stem.org.uk/rxds5
http://stem.org.uk/rxds5http://stem.org.uk/rxds5Fri, 13 Feb 2015 11:56:51 GMTMichael BawtreeThis excel file shows how Pascal's triangle can be used to calculate probabilities. Separate sheets show the possible outcomes when different numbers of coins are tossed. With the smaller number of coins these outcomes are listed. <br />
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The first five lines of the binomial expansion (H+T)n is shown and this is linked to Pascal's Triangle. On the final interactive sheet the nCr notation is used and clicking on the cells reveals the numbers as in Pascal's Triangle. There are a further five sheets of questions which may be suitable for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Pascal's Triangle: Coins and nCrPascal's Triangle: Coins and nCr
http://stem.org.uk/rxds4
http://stem.org.uk/rxds4http://stem.org.uk/rxds4Fri, 13 Feb 2015 11:55:01 GMTMichael BawtreeThis excel file begins with finding percentages of amounts without using a calculator. There are various options to allow for different degrees of difficulty of the questions posed. Answers can be revealed and new sets of questions generated. <br />
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The second sheet has similar sets of questions but calculators are expected to be used. The next sheet helps the student recognise the multiplier as a decimal. The remaining interactive sheets encourage the student to use the multiplier to find either the original amount or the final value after a percentage change. <br />
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There are a further seven sheets of questions which may be suitable for classroom use. The questions on VAT use the figure of 17½%.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.PercentagesPercentages
http://stem.org.uk/rxds3
http://stem.org.uk/rxds3http://stem.org.uk/rxds3Fri, 13 Feb 2015 11:52:27 GMTMichael BawtreeThis excel file deals with the puzzle where a number between 1 and 63 is chosen. That number can be seen on some of a set of six cards. The number can easily be calculated by looking at the cards containing that number. This puzzle is based on binary numbers and the fact that any number can be uniquely expressed as the sum of powers of 2. <br />
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The six cards are shown on the first sheet then there is a set of blank cards for students to complete once they have discovered the pattern. The last two sheets show the binary form of numbers up to 35.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.The Six Card PuzzleThe Six Card Puzzle
http://stem.org.uk/rxds2
http://stem.org.uk/rxds2http://stem.org.uk/rxds2Fri, 13 Feb 2015 11:50:50 GMTMichael BawtreeThis excel file deals with the four operations on positive and negative numbers giving practice at a variety of calculations.<br />
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The first four interactive sheet give sets of numbers to change into and from standard form. The powers of 10 may be positive or negative. The next interactive sheets deal with finding the sum, product, difference or quotient of numbers expressed in standard form without using a calculator. Initially pairs of numbers are combined with answers available at each step to aid understanding. Then sets of questions on each type of calculation are provided for further practice. <br />
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There are a further seven sheets of questions which may be suitable for duplication for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Standard FormStandard Form
http://stem.org.uk/rxdrz
http://stem.org.uk/rxdrzhttp://stem.org.uk/rxdrzFri, 13 Feb 2015 11:49:03 GMTMichael BawtreeThis resource contains two interactive excel files which deal with rounding of discrete and continuous variables and pose problems involving practical examples of calculations using rounded values.<br />
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<b>Rounded Numbers: Bounds</b><br />
The first interactive sheet shows two numbers rounded to the nearest integer and illustrates this on a number line. The next sheets deal with the maximum and minimum values of the sum, difference, product and quotient of these numbers. <br />
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Each number is rounded to the nearest integer, new values can be generated and answers can be revealed. Subsequent sheets present problems using more practical applications of these skills and the starting values are rounded to the nearest 20, 5, 50, half hour and other amounts. <br />
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There are a further five sheets of questions which may be suitable for classroom use.<br />
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<b>Rounding Numbers-SF and DP</b><br />
The first interactive sheet shows sets of numbers which are to be rounded to the nearest 10, 100 or 1000. Answers can be revealed and new sets of numbers generated. The next sheets show amounts of money which are to be rounded to the nearest £1, £5, £10 or £20 then decimals which are to be rounded to one, two or three significant figures. <br />
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Examples of the rounding of both continuous and discrete variables are given on the next two sheets when students need to identify the upper and lower bounds. The last three interactive sheets give sets of values which need to be rounded to given numbers of decimal places, significant figures or correct to given units. <br />
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There are a further eight sheets of questions which may be suitable for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.RoundingRounding
http://stem.org.uk/rxdry
http://stem.org.uk/rxdryhttp://stem.org.uk/rxdryFri, 13 Feb 2015 11:47:33 GMTMichael BawtreeThis excel file deals with the four operations on positive and negative numbers giving practice at a variety of calculations.<br />
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The first interactive sheet shows a table with -5 to 5 both along the top and down the side. One of the operations- addition, subtraction or multiplication can be chosen and the contents of the cells revealed. All the cells can be filled and the positive and negative entries coloured differently. The second sheet deals with division in a similar way. The remaining six interactive sheets show number walls where operations are carried out on either positive or a mixture of positive and negative numbers. The contents of cells can be revealed in various orders so that understanding of inverse operations can be explored. <br />
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There are a further nine sheets of questions which may be suitable for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Positive and Negative Numbers - Brick WallsPositive and Negative Numbers - Brick Walls
http://stem.org.uk/rxdrx
http://stem.org.uk/rxdrxhttp://stem.org.uk/rxdrxFri, 13 Feb 2015 11:46:02 GMTMichael BawtreeThis resource contains three interactive excel files illustrating different features of integer patterns. The different types of number include odd, even, prime, square and rectangular numbers. Triangle numbers and the Fibonacci Sequence are revealed in Pascal's Triangle. Prime numbers, factors and the product of primes are dealt with as well as the relationship between the HCF and LCM of pairs of integers.<br />
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<b>Number Types</b><br />
This interactive excel file shows pictures of the most common sets of integers. The types of number illustrated on separate sheets are odd, even, square, triangular, rectangular and prime. The rectangular number sheet is interesting because some square numbers can be shown as rectangular patterns in blue or squares in red. The final interactive sheet shows a summary of these sets of numbers on a one hundred square. There are also a further eight sheets of questions which may be suitable for classroom use.<br />
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<b>Pascal's Triangle</b><br />
The first sheet shows a blank grid of Pascal's triangle and the values can be revealed. The second and third interactive sheets illustrate that the row sums are powers of two and how the Fibonacci Sequence can be found. The following sheets illustrate sequence of the counting numbers, the triangle numbers and pyramid numbers. There are also a further eight sheets of questions which may be suitable for classroom use.<br />
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<b>Prime Numbers (Eratosthenes), Prime Factors</b><br />
The first interactive sheet shows the integers 1 to 100 and the method of the Sieve of Eratosthenes is used to reveal prime numbers. The next sheet enables students to check the sets of factors of numbers up to 35 leading to identifying prime, square and rectangular numbers. <br />
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The final two interactive sheets generate pairs of numbers for the product of the prime factors to be found by dividing those numbers by appropriate prime numbers. The more difficult of these last two sheets also deals with the relationship between the product, HCF and LCM of the pair of numbers.<br />
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There are a further five sheets of questions which may be suitable for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Number TypesNumber Types
http://stem.org.uk/rxdrw
http://stem.org.uk/rxdrwhttp://stem.org.uk/rxdrwFri, 13 Feb 2015 11:43:08 GMTMichael BawtreeThis resource contains two interactive excel files dealing with aspects of multiplication of integers and decimals. <br />
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<b>Long Multiplication</b><br />
The first three interactive sheets show the steps involved in carrying out long multiplication. Different levels of difficulty can be chosen and entries in each part of the calculation (including the carried digits) can be revealed. <br />
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The next sheet shows three columns of multiplication questions which allow for differentiation within the classroom. The final two interactive sheets show a product and sets of questions involving those digits and multiplication or division of related decimals. There are also a further 12 sheets of questions which may be suitable for classroom use.<br />
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<b>Multiplication by splitting tens and units</b><br />
The first interactive sheet deals with partitioning numbers and the use of the grid method of multiplication. The next two sheets give further practice including multiplying and dividing by 10 to simplify the product. <br />
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The grid method is then used to find the product of two two-digit numbers where the second is less than 10. The final two interactive sheets show how to use a Russian method of multiplication based upon Napier's Bones. There are also a further eight sheets of questions which may be suitable for classroom use.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.MultiplicationMultiplication
http://stem.org.uk/rxdrv
http://stem.org.uk/rxdrvhttp://stem.org.uk/rxdrvFri, 13 Feb 2015 11:40:41 GMTMichael BawtreeThe first interactive sheet shows fractions where the numerator is 1. The fraction is converted into a decimal by long division and illustrated as the fraction of a circle. The denominator can be altered to be between 1 and 9. The next two sheets also show long division to change fractions to decimals where both numerator and denominator can be altered. Each step of the division can clearly be shown.<br />
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The final interactive sheet shows sets of fractions of amounts of money where the answers can be revealed. <br />
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There are a further four sheets of questions which include the four rules applied to decimals. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.DivisionDivision
http://stem.org.uk/rxdru
http://stem.org.uk/rxdruhttp://stem.org.uk/rxdruFri, 13 Feb 2015 11:39:23 GMTMichael BawtreeThis resource contains two interactive excel files providing an introduction to indices, dealing with products and quotients involving indices and evaluating fractional indices (positive and negative). Each file contains the same further 16 sheets of questions which may be suitable for classroom use.<br />
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<b>Indices: Integer</b><br />
The first interactive sheet deals with the concept of indices beginning with positive powers of ten. The next sheet requires students to calculate values of powers of other bases. A separate sheet introduces negative indices and practice is provided of finding values of different bases to negative indices. Answers can be revealed and new sets of questions shown.<br />
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The final interactive sheets illustrate the rules for multiplication and division of numbers expressed in index form. Sets of questions are available to give practice at evaluating products and quotients of pairs of numbers in index form with the same base.<br />
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<b>Indices: Fraction</b><br />
This interactive file begins with sheets dealing with raising integers to positive fractional powers. The first two sheets are worked examples followed by sheets showing sets of examples for students to evaluate. Answers can be revealed. The next sheets give worked examples of indices which are negative fractions. The final interactive sheets provide practice at evaluating expressions when the indices are negative fractions. The level of difficulty is higher on later sheets culminating in raising fractions to fractional indices. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machines.IndicesIndices
http://stem.org.uk/rxdrt
http://stem.org.uk/rxdrthttp://stem.org.uk/rxdrtFri, 13 Feb 2015 11:37:29 GMTMichael BawtreeThe first interactive sheet shows a table of pairs of integers for students to reveal the factors and sets of multiples. The HCF and LCM can be revealed. New pairs of digits can be shown, either easy or more challenging. Each number is shown as the product of its prime factors. <br />
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The next two sheets show sets of pairs of numbers, for students to explore the relationship between the product, HCF and LCM. The final interactive sheet similarly shows the relationship between the product, HCF and LCM for algebraic products. <br />
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There are a further five sheets of questions which may be duplicated for classroom use. These include finding the common denominator of algebraic fractions.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.HCF and LCMHCF and LCM
http://stem.org.uk/rxdrs
http://stem.org.uk/rxdrshttp://stem.org.uk/rxdrsFri, 13 Feb 2015 11:33:11 GMTMichael BawtreeThis excel file allows students to explore the successive terms of a Geometric Series. The first term and the common ratio can be altered and the successive terms and sum of the series shown on bar charts. The formula for the sum of a Geometric Series is derived and the sum to infinity stated.<br />
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The last two interactive sheets require students to use these formulae to help them fill in gaps in tables of values relating to Geometric Series. Answers can be revealed or hidden and new sets of questions generated.<br />
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There are a further three sheets of questions which may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machines.Geometric SeriesGeometric Series
http://stem.org.uk/rxdrr
http://stem.org.uk/rxdrrhttp://stem.org.uk/rxdrrFri, 13 Feb 2015 11:31:39 GMTMichael BawtreeThis resource contains three excel files dealing with various aspects of fractions. <br />
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<b>Fractions of X (mental arithmetic)</b><br />
This excel file has four interactive sheets. Each sheet shows sets of questions where students find the fraction of given amounts. Answers can be revealed and new sets of questions shown. Fractions of integers or decimals can be found by selecting the appropriate sheet. The most challenging sheet requires the student to be able to multiply integers by mixed numbers. There are a further 11 sheets of questions on related topics which may be suitable to be duplicated for classroom use. <br />
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<b>Fractions: Add, Subtract, Multiply, Divide</b><br />
This file has a number of interactive sheets which clearly show the steps involved in applying the four rules to fractions and mixed numbers. New sets of questions can be shown and the student has some control over the degree of difficulty of the questions. For example, the students can decide if there is to be a common factor in the denominators when adding or subtracting the fractions. There are a further 10 sheets of questions on these and related topics which may be suitable to be duplicated for classroom use. <br />
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<b>Fractions: Mixed, Top-heavy, Equivalent</b><br />
The first two interactive sheets give practice at converting between mixed numbers and improper fractions. New sets of questions can be selected and answers can be revealed or hidden. The last interactive sheet gives practice at finding sets of equivalent fractions.<br />
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There are a further eight sheets of questions which may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.FractionsFractions
http://stem.org.uk/rxdrq
http://stem.org.uk/rxdrqhttp://stem.org.uk/rxdrqFri, 13 Feb 2015 11:27:24 GMTMichael BawtreeThis excel file has two interactive sheets, both showing variations of the Countdown game. The first shows a grid for a set of nine letters to be selected, either vowel or consonant. There is a 30 second timer to allow students time to make their longest word. <br />
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The second interactive sheet shows a grid for the selection of numbers and the target number. Again, there is a 30 second countdown to enable students to get as close as possible to the target number.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.CountdownCountdown
http://stem.org.uk/rxdrp
http://stem.org.uk/rxdrphttp://stem.org.uk/rxdrpFri, 13 Feb 2015 11:26:14 GMTMichael BawtreeThis excel file has large displays of two Casio calculators which could be useful for class discussion. The first interactive sheet shows sets of calculations which require the use of functions including x2, √ and π. The second interactive sheet shows sets of more difficult expressions to be evaluated. Answers can be revealed and new sets of questions displayed. <br />
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There are a further seven sheets of questions requiring the use of a calculator. These may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.CalculatorCalculator
http://stem.org.uk/rxdro
http://stem.org.uk/rxdrohttp://stem.org.uk/rxdroFri, 13 Feb 2015 11:24:54 GMTMichael BawtreeThis excel file has four interactive sheets dealing with the order of operations. The first shows groups of calculations involving addition, subtraction and multiplication where the answers can be revealed. The second interactive sheet is similar, but it deals with calculations involving division instead of multiplication. The next sheet deals with calculations with the four operations and brackets whilst the final sheet requires students to insert brackets to make the shown calculations correct. The final sheet requires teacher input as students are asked to say if any of the brackets in the answers are unnecessary.<br />
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There are a further two sheets of questions which may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Bodmas and BidmasBodmas and Bidmas
http://stem.org.uk/rxdrn
http://stem.org.uk/rxdrnhttp://stem.org.uk/rxdrnFri, 13 Feb 2015 11:15:31 GMTMichael BawtreeThis interactive excel file deals with column addition of integers, money and decimals. The first interactive sheet shows pairs of numbers to be added and students can click beneath the columns to check each stage of their working. The next sheet shows the addition of money in a similar way. The next two interactive sheets give sets of three or four numbers which need to be written in column addition format and the method and answers can be revealed. <br />
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There are a further five sheets of questions which may be suitable for duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Adding (Numbers and Money)Adding (Numbers and Money)
http://stem.org.uk/rxdrm
http://stem.org.uk/rxdrmhttp://stem.org.uk/rxdrmFri, 13 Feb 2015 11:13:57 GMTMichael BawtreeThis interactive excel file deals with place value of number and with multiplication and division by 10, 100 and 1000. The interactive sheets begin with the student being able to reveal the word form for a set of large numbers. Then there are sheets which show sets of integers or decimals which are to be multiplied or divided by 10, 100 or 1000. <br />
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The next sheets deal with rounding to the nearest 10, 100 or 1000. Money is changed from pence to pounds and mass from grams to kilograms with answers either revealed or hidden. The final interactive sheet asks students to round decimals to one or two decimal places. <br />
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There are a further eight sheets of questions on these and similar topics which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.10, 100, 100010, 100, 1000
http://stem.org.uk/rxdrk
http://stem.org.uk/rxdrkhttp://stem.org.uk/rxdrkFri, 13 Feb 2015 11:10:17 GMTMichael BawtreeThis interactive excel sheet deals with a variety of vector topics. It begins with sheets which require students to identify column vectors from line segments and then to find the magnitude and direction of vectors expressed in column form. <br />
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The next interactive sheets illustrate the fact that a+nb lies on a straight line and finding the point of intersection of two straight lines. Later sheets deal with some vector geometry topics including the mid-point of a line, the centroid of a triangle and parallelogram formed by the midpoints of a quadrilateral.<br />
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There are a further eight sheets of questions on a number of different vector topics which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.VectorsVectors
http://stem.org.uk/rxdrj
http://stem.org.uk/rxdrjhttp://stem.org.uk/rxdrjFri, 13 Feb 2015 11:06:19 GMTMichael BawtreeThis resource consists of four interactive excel files dealing with single transformations of 2D shapes.<br />
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<b>Transformation: Enlargement</b> <br />
This interactive program enables students to explore the enlargement of different shapes. The sheets deal with shapes shown on either a square grid or a coordinate grid. The centre of enlargement can be altered and positive and negative scale factors can be chosen. The file contains twelve printable worksheets of questions on enlargement and related topics which may be suitable for use within the classroom.<br />
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<b>Transformation: Reflection</b><br />
This interactive program illustrates reflections of a triangle which are shown on square grids with or without coordinate axes. The mirror line can be altered and the new image seen on screen. The file contains eight printable worksheets of questions which may be suitable for use within the classroom.<br />
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<b>Transformation: Rotation</b><br />
Students can use this interactive file to explore simple rotations. A triangle is rotated by 45⁰ or multiples of 90⁰ either clockwise or anticlockwise. The centre of rotation can be altered and the shapes can be shown on grids with or without coordinate axes. There are a further seven printable worksheets of questions which may be suitable for use within the classroom.<br />
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<b>Transformation: Translation</b><br />
The first sheet allows the student to see a shape translated by a vector, to see different shapes translated and to be able to alter the vector. The next two sheets deal with the addition and subtraction of vectors. <br />
The final interactive sheet shows the position vectors of two points and the student needs to find the magnitude of the vector between the points and the direction as a bearing. Pythagoras Theorem and trigonometry would need to be used.<br />
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There are nine printable worksheets of questions which may be suitable for use within the classroom. These include questions on combinations of transformations.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.TransformationsTransformations
http://stem.org.uk/rxdrh
http://stem.org.uk/rxdrhhttp://stem.org.uk/rxdrhFri, 13 Feb 2015 11:03:38 GMTMichael BawtreeThis excel file has separate sheets dealing with various styles of analogue clock face and different levels of difficulty. It begins with a sheet showing times limited to quarter, half and whole hours. The next two sheets have the numbers removed from the clock face. These first sheets would require teacher input to check student responses. There is also an interactive sheet which shows either am or pm time on an analogue clock face and the students can reveal the 24 hour digital display.<br />
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The next three sheets are more interactive with students needing to fill in the gaps in timetables.<br />
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There are a further two sheets of questions which may be duplicated for classroom use. The first is about reading information from a timetable and the other is about finding angles between the hands of an analogue clock.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Time: Clocks - Analogue and DigitalTime: Clocks - Analogue and Digital
http://stem.org.uk/rxdrg
http://stem.org.uk/rxdrghttp://stem.org.uk/rxdrgFri, 13 Feb 2015 11:00:46 GMTMichael BawtreeThis interactive file deals with various angles and lengths within tetrahedrons. <br />
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The first sheet shows the diagram of a regular tetrahedron. Various sides and angles need to be calculated using Pythagoras Theorem and trigonometry. The sides are to be given in surd form where necessary. The next sheet enables the student to calculate the radius of the sphere containing a regular tetrahedron.<br />
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The third and final sheet involves finding angles and lengths in a particular tetrahedron where the base is an isosceles triangle. Lengths can be revealed to enable other lengths and angles to be calculated and checked.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.TetrahedronTetrahedron
http://stem.org.uk/rxdrf
http://stem.org.uk/rxdrfhttp://stem.org.uk/rxdrfFri, 13 Feb 2015 10:58:41 GMTMichael BawtreeThe first five interactive sheets deal with various types of diagram involving similar triangles. Each sheet shows a clear diagram and a table of values. Lengths of line segments can be revealed to allow the student to calculate the scale factor of enlargement and the remaining lengths. <br />
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The next interactive sheets deal with the enlargement of rectangles, cubes, spheres and cylinders. Lengths and scale factors can be revealed in a table below each diagram and other lengths, area and volumes can be calculated and checked.<br />
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There are a further three sheets of questions on similarity and scale factors which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.SimilaritySimilarity
http://stem.org.uk/rxdre
http://stem.org.uk/rxdrehttp://stem.org.uk/rxdreFri, 13 Feb 2015 10:56:04 GMTMichael BawtreeThis interactive excel file shows how the volume of a prism relates to the area of cross section and the length. Various different shapes of cross section are used including pentagons, hexagons, circles and semicircles. In each interactive sheet the cross section can be seen to move through the length of the prism. The area of the different cross sections can be found and the volume calculated. For some of the cross sections trigonometry or Pythagoras Theorem is needed in order to calculate the area. <br />
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There is an interactive sheet of questions where two values are given for a number of different prisms and the other values need to be calculated. Correct answers can be revealed. <br />
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There are seven further sheets of questions on related topics which could be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.PrismsPrisms
http://stem.org.uk/rxdrd
http://stem.org.uk/rxdrdhttp://stem.org.uk/rxdrdFri, 13 Feb 2015 10:54:43 GMTMichael BawtreeThe different types of quadrilateral are illustrated in the first seven interactive sheets of this excel file. Examples of each type of quadrilateral are shown and then further examples illustrated on a coordinate grid. The next sheet is more like a quiz as quadrilaterals are shown and the student is able to check by revealing the name. <br />
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There are a further 13 sheets of questions on related topics which may be suitable for duplication for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.QuadrilateralsQuadrilaterals
http://stem.org.uk/rxdrc
http://stem.org.uk/rxdrchttp://stem.org.uk/rxdrcFri, 13 Feb 2015 10:46:30 GMTMichael BawtreeThis interactive excel file has a series of sheets showing nine different regular polygons. Each polygon can be rotated and also shown with or without the circumscribing circle. They can be shown with or without the radii.<br />
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The next sheet shows a table of questions related to these and other regular polygons. Students need to find the exterior angle and the sum of the interior angles. In order to find the side length, perimeter and area of the polygons trigonometry would need to be used.<br />
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There are a further four sheets of questions on related topics which may be suitable for duplication for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Polygons (Regular)Polygons (Regular)
http://stem.org.uk/rxdrb
http://stem.org.uk/rxdrbhttp://stem.org.uk/rxdrbFri, 13 Feb 2015 10:42:10 GMTMichael BawtreeThis interactive excel file allows students to investigate two-point perspective drawings of some simple shapes. The concept is put into context by a picture of the interior of a French church. <br />
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The shapes in the investigations are a cuboid, a building with a simple roof and a building with a spire. The dimensions and the vanishing points can be altered to allow the shapes to be viewed from different angles. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.PerspectivePerspective
http://stem.org.uk/rxdra
http://stem.org.uk/rxdrahttp://stem.org.uk/rxdraFri, 13 Feb 2015 10:40:47 GMTMichael BawtreeThis interactive excel file allows students to investigate loci. Each of the interactive sheets enables students to see random points on or near the locus and how the locus is constructed. Loci include the locus of points equidistant from a point, from a line segment and from two lines. There is an interactive sheet showing distances from pairs of airfields in the south east of England. Two further sheets show the cycloid and the epi-cycloid. <br />
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There are also eight sheets of questions on loci and related topics which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.LociLoci
http://stem.org.uk/rxdr9
http://stem.org.uk/rxdr9http://stem.org.uk/rxdr9Fri, 13 Feb 2015 10:17:37 GMTMichael BawtreeThis resource consists of two interactive excel files dealing with some aspects of construction and geometric proof. <br />
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<b>Perpendicular Bisectors</b><br />
This excel file begins with illustrating the perpendicular bisector of a line segment. It goes on to show the perpendicular bisectors of two line segments which meet at a point. Finally the perpendicular bisectors of the sides of a triangle are shown. In each case the lines can be seen to change in increments. The particular cases of isosceles, equilateral and right angle triangles are clearly illustrated on a separate sheet.<br />
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There are a further two sheets of questions requiring use of ruler and compasses which may be duplicated for classroom use. <br />
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<b>Geometry: Construction, Proof</b><br />
This excel file presents the student with a number of problems involving geometric proof. These begin with proofs requiring understanding of similar triangles and cyclic quadrilaterals. Students are also challenged to prove that the angle between tangent and chord is equal to the angle in the alternate segment. Later problems are much more challenging. <br />
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In each case the diagram is interactive and can help to illustrate the problem. The file contains some sheets of questions on construction and locus which may be suitable for use within the classroom.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Geometry: Construction ProofGeometry: Construction Proof
http://stem.org.uk/rxdr8
http://stem.org.uk/rxdr8http://stem.org.uk/rxdr8Fri, 13 Feb 2015 10:13:26 GMTMichael BawtreeThis excel file shows the Greenwich Meridian, lines of longitude and parallels of latitude. It treats the Earth as a sphere. On the interactive sheets the position of two points on the globe can be altered. <br />
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There is a set of seven questions with answers where the student needs to calculate the shortest distance between two points but only by moving along lines of longitude or latitude. The ability to calculate the length of an arc is needed and success at some of these questions requires the use of trigonometry. <br />
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There is a searchable database of many cities which allows students to set their own questions. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Earth GeometryEarth Geometry
http://stem.org.uk/rxdr7
http://stem.org.uk/rxdr7http://stem.org.uk/rxdr7Fri, 13 Feb 2015 10:12:02 GMTMichael BawtreeThis interactive excel file begins with a sheet showing the dimensions of a cuboid beside an oblique drawing of the cuboid. The student needs to calculate the area of the three different faces, the total surface area and the volume of the cuboid. The dimensions can be changed and the net can be shown on a separate sheet.<br />
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There are a further five sheets of questions on related topics which may be suitable for duplication for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.CuboidsCuboids
http://stem.org.uk/rxdr6
http://stem.org.uk/rxdr6http://stem.org.uk/rxdr6Fri, 13 Feb 2015 10:10:59 GMTMichael BawtreeThis resource consists of four interactive excel files dealing with the circumference and area of circles and some of the main circle theorems.<br />
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<b>Circle: Circumference</b><br />
This file begins with a sheet which allows measurements of circumference and diameters to be plotted and the line of best fit is automatically drawn. The formula C=πD is stated and sets of questions give practice at finding circumference, diameter and radius. The next sheets deal with the perimeter of semi-circles and 3/4 circles. Further sheets of questions are provided for use within the classroom. <br />
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<b>Circle: Sectors, Area</b><br />
Like the previous activity this file begins with a practical. Students estimate the areas of circles and are able to enter these values into tables of values for the area against radius and radius2. A line or curve of best fit is automatically drawn on the two graphs then the formula A=πr<sup>2</sup> is stated. The next sheets deal with areas of sectors and sets of questions requiring use of the formula A=πr<sup>2</sup>. Further sheets of questions are provided for use within the classroom. <br />
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<b>Circle Geometry: Angle at Centre and Circumference</b> <br />
This activity illustrates the fact that the angle at the centre is twice the angle subtended at the circumference. There are three main interactive sheets where angles can be hidden or shown so that understanding can be checked and developed. There are further sheets with questions on related topics including bearings, similarity and the Cosine Rule.<br />
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<b>Circle Geometry: Angles in the Same Segment</b><br />
This excel file begins with defining the terms used and then two angles in the major segment are shown. Subsequent interactive sheets allow many more such angles to be shown, both in the major and minor segments. Students can reveal answers to the size of angles and in doing so test their understanding. One sheet deals with the angles in some cyclic quadrilaterals. This excel file concludes with the same further sheets of questions as the previous file.<br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Circle GeometryCircle Geometry
http://stem.org.uk/rxdr4
http://stem.org.uk/rxdr4http://stem.org.uk/rxdr4Fri, 13 Feb 2015 09:58:56 GMTMichael BawtreeThis interactive excel file begins with a sheet showing a compass rose to help students estimate the bearing of the direction shown. The next sheets allow students to estimate bearings between points shown on a coordinate grid. To calculate the bearings students would need to use the tangent ratio. <br />
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Heathrow air traffic control is used as an example of practical use of bearings and another sheet shows a rectangular flight path of aeroplanes preparing to land. Subsequent sheets give sets of questions where students need to calculate bearing and distance when the use of the Cosine Rule is needed.<br />
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There are a further eight sheets of questions which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.BearingsBearings
http://stem.org.uk/rxdr3
http://stem.org.uk/rxdr3http://stem.org.uk/rxdr3Fri, 13 Feb 2015 09:57:40 GMTMichael BawtreeThis resource consists of two interactive excel files. <br />
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<b>Area and Perimeter: Algebraic, Rectangles</b><br />
The first two sheets of this excel file begin with finding the perimeter and area of rectangles starting with numerical values for the sides then involving some algebra. <br />
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The next sheet deals with two types of problem; <br />
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a) finding sides of the rectangle given one side and the area or <br />
b) finding both sides given the area and perimeter. <br />
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There are a further six sheets of questions on similar topics which may be duplicated for classroom use. <br />
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<b>Area of Rectangle Based Shapes</b><br />
This interactive excel file deals with finding area and perimeter of shapes made from combinations of rectangles. It begins with simple problems then becomes more challenging. Students can change the shapes in the problems making them more difficult to solve. Lengths are all integers and the areas and perimeters can be displayed. There are the same six sheets of questions as in the previous file and these may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Area and PerimeterArea and Perimeter
http://stem.org.uk/rxdr2
http://stem.org.uk/rxdr2http://stem.org.uk/rxdr2Fri, 13 Feb 2015 09:55:21 GMTMichael BawtreeThe first two sheets of this excel file remind students of terminology associated with circles and the formulae for area and circumference of a circle. The next five sheets deal with finding the arc length as a fraction of the circumference with worked examples of the distance travelled by a swing and the distance moved by the Earth (with simplifying assumptions) over a number of months. The area of a sector formula is illustrated in a similar way. The resource has sets of problems where the formulae need to be used.<br />
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There are a further ten sheets of questions on similar topics which may be duplicated for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Arcs and Sectors of CirclesArcs and Sectors of Circles
http://stem.org.uk/rxdqz
http://stem.org.uk/rxdqzhttp://stem.org.uk/rxdqzFri, 13 Feb 2015 09:53:22 GMTMichael BawtreeThis resource consists of two interactive excel programs. The first deals with basic angle facts and recognition of types of triangle. Depending on how it is used, the second could require the use of Pythagoras' Theorem and trigonometry. The second excel file could also be used to provides problems relating to the recognition of different types of triangle. <br />
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<b>Angle Facts</b><br />
This interactive excel file presents students with questions relating to angles on a straight line, angles at a point, and angles in triangles and rectangles. The sheet on angles and parallel lines does not use the words "corresponding" or "alternate" but the F or Z shape can be shown on the diagram. There are also three interactive sheets on angles in scalene, isosceles and equilateral triangles. There are a further thirteen sheets of questions suitable for duplication for classroom use. <br />
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<b>Triangles: What Type, Angles, Area</b><br />
The first two sheets show a triangle on a coordinate grid. Students can calculate the length of sides, the angles and the area of each triangle. Alternatively, students can click to reveal the lengths and angles and state the type of triangle. The third sheet shows a triangle, the size of angles can be revealed and students say whether the triangle is scalene, equilateral or isosceles. There are a further eight sheets of questions on similar topics suitable for duplication for classroom use. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.Angles and TrianglesAngles and Triangles
http://stem.org.uk/rxdqy
http://stem.org.uk/rxdqyhttp://stem.org.uk/rxdqyFri, 13 Feb 2015 09:51:01 GMTMichael BawtreeThis resource consists of two interactive excel programs. The first allows students to explore 2D representations of solids. The second provides problems relating to angles and lengths within solids which need to be solved using trigonometry. <br />
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<b>Drawing 3D in 2D</b><br />
This excel file deals with 2D representations of solids. Access to multilink cubes and isometric paper is beneficial. It begins with a set of solids to be made out of multilink and perhaps drawn on isometric paper. The second sheet shows in stages how a series of solids is rotated by 90⁰ and the third sheet allows students to see shapes turned upside down. The next two sheets deal with plans and elevations. There are a further four sheets of questions suitable for classroom use. <br />
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<b>3D Geometry</b> <br />
This interactive excel file deals with trigonometry in 3D. It begins with a sheet illustrating the angle between two planes. The next two sheets show diagrams of cuboids for students to find lengths, angles or angles between planes. Hints are given and answers correct to 1 d.p. can be revealed. Angles and lengths within pyramids are dealt with on a separate sheet.<br />
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This file also has eight sheets of printable sets of questions which may be suitable for use within the classroom. Topics include 3D coordinates and the volume and area of prisms, spheres, cones and cylinders. <br />
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<b>Note</b><br />
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.2D and 3D2D and 3D
http://stem.org.uk/rxdqx
http://stem.org.uk/rxdqxhttp://stem.org.uk/rxdqxFri, 13 Feb 2015 09:48:44 GMTMichael BawtreeThis resource provides many short clips of the teaching of calculation strategies at primary level. Examples focus on the development of the understanding of addition, subtraction, multiplication and division using many of examples detailed in the National Numeracy Strategy Framework. The clips show teachers using manipulatives such as multilink cubes, arrow cards and number lines to support the learning of number across the primary phase. The video is divided into five sections:<br />
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• <b>Mental calculations</b><br />
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• <b>Recording calculations</b><br />
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• <b>Mathematics in Reception</b><br />
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• <b>Mathematics in Nursery</b> <br />
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• <b>Mathematics in special schools</b> <br />
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This video has been produced by the Department for Education and Employment as part of the National Numeracy Strategy materials.Video for Book 4Video for Book 4
http://stem.org.uk/rxdqv
http://stem.org.uk/rxdqvhttp://stem.org.uk/rxdqvThu, 12 Feb 2015 14:27:46 GMTNational Numeracy StrategyThis excel program contains two interactive spreadsheets designed to explore the gradient functions of cubic and quadratic functions.<br />
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The first activity enables students to alter the coefficients in the function ax2+bx+c. The graph of the function and the graphs of the first and second differentials are shown on one diagram. The coordinates of many points on each graph are listed beside the coefficients of the derived functions. This enables the student to explore the relationship between the coefficients of the three related functions.<br />
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The second activity enables students to alter the coefficients in the function ax3+bx2+cx+d and to see the graphs, the function and the first and second differentials on one diagram. As with the quadratic function the coordinates of points on each graph are listed so the student can explore the relationship between the coefficients of the three related functions.<br />
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The workbook contains a further eight worksheets providing further questions for use in the classroom.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a user's machine.Calculus: Graphing the First and Second DifferentialsCalculus: Graphing the First and Second Differentials
http://stem.org.uk/rxdqu
http://stem.org.uk/rxdquhttp://stem.org.uk/rxdquThu, 12 Feb 2015 12:48:23 GMTMichael BawtreeThis interactive excel program covers distance/time and velocity/time graphs. <br />
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The first interactive sheet shows a distance/time graph made of line segments and some questions relating to speed for each segment and the time when velocity is zero. The second sheet shows the journeys of two people.<br />
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The third sheet shows a velocity/time graph made of line segments and the questions relate to finding either the acceleration or the distance travelled for each segment. The final sheet shows a more realistic velocity/time graph and students need to use the trapezium rule to calculate an estimate for the distance travelled. <br />
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The resource also has seven sheets of printable sets of questions which may be suitable for use within the classroom.<br />
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<b>Note</b>: This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Travel GraphsTravel Graphs
http://stem.org.uk/rxdqt
http://stem.org.uk/rxdqthttp://stem.org.uk/rxdqtThu, 12 Feb 2015 12:46:02 GMTMichael BawtreeThis interactive excel program allows students to explore the relationship between the transformation of functions and the associated graphs. Functions explored are straight lines, quadratic and cubic functions as well as sine and cosine curves. Each type of function can be fully transformed in stages. The algebraic expression for each function can be hidden or revealed. By selecting "new" the interactive sheets present the student with the graph of a new function so understanding can be tested.<br />
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The form of the quadratic function is a(x+b)<sup>2</sup>+c. The parameters can be increased or decreased to transformed from f(x)=x<sup>2</sup>. After each transformation the intermediate graph remains visible. Hence the full picture of the steps towards each composite transformation is revealed.<br />
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The interactive sheets for the sine and cosine functions deal with the forms asin(x+b)+c and acos(x+b)+c. The parameters can be changed and the graphs of intermediate functions revealed. New functions can be generated and the algebraic expression revealed.<br />
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The resource also has 12 sheets of printable sets of questions which may be suitable for use within the classroom.<br />
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<b>Note</b>: This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Transformation of FunctionsTransformation of Functions
http://stem.org.uk/rxdqs
http://stem.org.uk/rxdqshttp://stem.org.uk/rxdqsThu, 12 Feb 2015 12:44:55 GMTMichael BawtreeThis interactive excel program is about finding the equation of straight lines in the form ax+by+c=0. The first two sheets deals with the equation of the line through two given points and the equation of the line through a point perpendicular to a given line. The program allows the graphs of the lines to be shown on coordinate grids. <br />
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Further sheets deal with similar problems including finding the equation of the perpendicular bisector of a line segment, finding the coordinates of the circum-centre of a triangle and the equations of lines relating to a circle. All the sheets have clear diagrams and the answers can be revealed or hidden. Each sheet can generate new examples of each type of problem.<br />
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The resource also has a printable set of questions about finding the equation of the line through two given points.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Straight Lines: Y = mX + cStraight Lines: Y = mX + c
http://stem.org.uk/rxdqr
http://stem.org.uk/rxdqrhttp://stem.org.uk/rxdqrThu, 12 Feb 2015 12:43:10 GMTMichael BawtreeThis contains two excel programs with interactive spreadsheets designed to show the graphical solution to pairs of simultaneous equations and provide their solutions.<br />
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<b>Simultaneous Equations: Linear</b> <br />
This excel workbook generates sets of pairs of linear equations, shows their graphs and can show or hide their solutions. The five sheets begin with simple equations then the level of challenge increases to include negative and/or fractional solutions. The workbook contains a further eight worksheets providing further questions for use in the classroom.<br />
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<b>Simultaneous Equations: Non-Linear</b> <br />
This excel workbook begins with a worksheet which shows a set of coordinates and five pairs of equations. Each pair of equations is a linear equation and y=x2. Clicking on appropriate cells reveals the graph or the solutions. Solutions to this first sheet are all integers. Other sheets deal with more difficult quadratics, two quadratics and the intersection of a line and a circle. This workbook has a worksheet of questions suitable for use in the classroom.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Simultaneous EquationsSimultaneous Equations
http://stem.org.uk/rxdqq
http://stem.org.uk/rxdqqhttp://stem.org.uk/rxdqqThu, 12 Feb 2015 12:41:24 GMTMichael BawtreeThis resource contains four excel programs with interactive spreadsheets dealing with topics relating to quadratic expressions, their graphs and solving quadratic equations. <br />
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<b>Quadratics: Rearranging and Graphing</b><br />
The first sheet shows a set of quadratic functions and the student is asked for the general shape of each one. The second sheet requires the student to expand brackets and arrange the expressions into the form ax<sup>2</sup>+bx+c. The next sheet gives a set of quadratic functions and the student needs to state the x and y intercepts. The workbook contains a further four printable worksheets providing further questions for use in the classroom.<br />
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<b>Quadratics: Solving</b><br />
This interactive workbook begins with examples of solving quadratic equations using the formula. Roots are given in surd form or shown on a graph in decimal form. The discriminant and the nature of the roots is also dealt with. Sets of questions require the student to decide if the roots are real and if so rational or irrational. Two further sheets give quadratic equations which can be solved by factorising. There are also eight printable worksheets of questions.<br />
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<b>Quadratics: Tables of Values</b><br />
This interactive workbook deals with how graphs can be plotted. Suitable tables of values for quadratic functions can be revealed and the graphs are shown. Various forms of the function can be selected including -x<sup>2</sup>+bx and 2x<sup>2</sup>+bx+c. There are three further worksheets of questions suitable for use in the classroom.<br />
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<b>Quadratics: Turning point(XP)</b><br />
This interactive workbook deals with completing the square when the coefficient of x<sup>2</sup> is 1. It begins with a series of (x+a}<sup>2</sup> expressions to expand which can be swapped to become perfect squares to be factorised. Subsequent sheets show each step in the process of completing the square alongside graphs showing the turning points. There are three printable sheets of questions for use in the classroom. <br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.QuadraticsQuadratics
http://stem.org.uk/rxdqp
http://stem.org.uk/rxdqphttp://stem.org.uk/rxdqpThu, 12 Feb 2015 12:37:15 GMTMichael BawtreeThis excel program is about finding the equation of straight lines in the form ax+by+c=0. The first two sheets deals with the equation of the line through two given points and the equation of the line through a point perpendicular to a given line. The resource is an interactive excel program which allows the graphs of the lines to be shown on coordinate grids. <br />
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Further sheets deal with similar problems including finding the equation of the perpendicular bisector of a line segment, finding the coordinates of the circum-centre of a triangle and the equations of lines relating to a circle. All the sheets have clear diagrams and the answers can be revealed. Each sheet can generate new examples of each type of problem.<br />
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The resource also has a printable set of questions about finding the equation of the line through two given points.<br />
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<b>Note</b><br />
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This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Equations of Parallel and Perpendicular LinesEquations of Parallel and Perpendicular Lines
http://stem.org.uk/rxdqo
http://stem.org.uk/rxdqohttp://stem.org.uk/rxdqoThu, 12 Feb 2015 12:35:31 GMTMichael BawtreeThis resource is an interactive excel program which provides dynamic drawings and graphs related to the classic maximum volume of a box problem. There are two versions of the problem, one starting with a square base and the other with a rectangular base. <br />
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Each interactive sheet shows the height, width and length of the box as the height changes. In addition to the dynamic drawings the program shows a graph of the volume of the box against the height. Tangents can be shown on the graphs so that the student can see approximately where the maximum point is. <br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Max BoxMax Box
http://stem.org.uk/rxdqn
http://stem.org.uk/rxdqnhttp://stem.org.uk/rxdqnThu, 12 Feb 2015 12:33:34 GMTMichael BawtreeThis resource is an interactive excel program to enable students to solve some different types of linear equations. Each interactive sheet begins with an example of how the student could write out each stage of the solution. Students can click on the cells which are highlighted to reveal each step in the working.<br />
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The equations on the four interactive sheets progress from ax + b=c through to a(x+b)= cx+d. Each sheet can generate new questions and has lists of questions with positive solutions, negative or a mixture of both. Some of the interactive sheets also allow for fractional solutions. <br />
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The resource also has six sheets of questions suitable for duplication and use in the classroom. <br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Linear EquationsLinear Equations
http://stem.org.uk/rxdqm
http://stem.org.uk/rxdqmhttp://stem.org.uk/rxdqmThu, 12 Feb 2015 12:31:43 GMTMichael BawtreeThis resource contains two excel programs with interactive spreadsheets dealing with linear inequalities in one or two variables. <br />
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<b>Trial and Improvement</b><br />
This excel workbook starts with finding square roots then cube roots by trial and improvement. Similar methods are used to solve problems related to areas and volumes. The workbook contains a further four printable worksheets providing further questions for use in the classroom.<br />
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<b>Iterative Solutions of Quadratic Equations</b><br />
This interactive spreadsheet shows calculations and graphs for the iterative method of solving quadratic equations. The graphs can show the stages of the iterations for both of the solutions. There is also a sheet of questions which may be suitable for use in the classroom.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Numerical MethodsNumerical Methods
http://stem.org.uk/rxdqk
http://stem.org.uk/rxdqkhttp://stem.org.uk/rxdqkThu, 12 Feb 2015 12:29:19 GMTMichael BawtreeThis resource contains two excel programs with interactive spreadsheets dealing with linear inequalities in one or two variables. <br />
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<b>Inequalities: One variable</b><br />
This excel workbook deals with linear inequalities in one variable. The first sheet illustrates inequalities on a simple number line. The next eight sheets generate inequalities which are illustrated on number lines and the algebraic form can be revealed. Single or two way inequalities can be chosen. Integer values or continuous variables also may be chosen. The next two sheets each present the student with a set of linear inequalities to solve. <br />
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The workbook contains a further five printable worksheets providing further questions for use in the classroom.<br />
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<b>Inequalities: Two variables</b><br />
For success with this activity students need to be able to recognise the equations of straight lines. This excel workbook has a series of five worksheets which show a set of permitted points on a coordinate grid. Students need to write the appropriate inequalities to specify those points. The algebraic form of the inequalities can be hidden or revealed. <br />
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This workbook also has eight worksheet of questions which may be suitable for use in the classroom.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.InequalitiesInequalities
http://stem.org.uk/rxdqj
http://stem.org.uk/rxdqjhttp://stem.org.uk/rxdqjThu, 12 Feb 2015 12:27:10 GMTMichael BawtreeThis resource is an interactive excel program to enable students to investigate exponential growth and decay. The topics of the interactive sheets are depreciation, exponential growth of bacteria and half life and radioactive decay. <br />
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Each of the interactive sheets shows the graph of the function and there are questions in order to check understanding.<br />
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The resource also has three sheets of questions suitable for duplication and use in the classroom. These are about equivalence of simple fractions and percentage, percentage change, compound interest and other examples of exponential growth or decay.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Growth and DecayGrowth and Decay
http://stem.org.uk/rxdqh
http://stem.org.uk/rxdqhhttp://stem.org.uk/rxdqhThu, 12 Feb 2015 12:25:50 GMTMichael BawtreeThis resource is an interactive excel program to enable students to investigate the solution of polynomial equations up to cubics using a graphical method. <br />
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The program shows the graphs of cubic equations and the equivalent tables of values. There is a set of questions requiring students to solve equations graphically and confirm their solutions algebraically. They can amend the coefficients of cubic, quadratic or linear equations in order to draw the graphs and see the points of intersection.<br />
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One interactive sheet shows the graph of a cubic function and a straight line. Students alter the gradient and intercept of the straight line in order to solve an equation related to the given cubic function.<br />
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There are five sheets of questions suitable for duplication and use in the classroom. These are mainly related to simultaneous linear equations and problems related to quadratic equations.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Graphical Solution of EquationsGraphical Solution of Equations
http://stem.org.uk/rxdqg
http://stem.org.uk/rxdqghttp://stem.org.uk/rxdqgThu, 12 Feb 2015 12:24:30 GMTMichael BawtreeThis excel program contains a series of interactive spread sheets designed to explore the concept of a gradient of a curve.<br />
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The first activity illustrates that the gradient of a function, at a point P, is the gradient of a chord PQ as the length of PQ tends to zero. The equation of the quadratic can be adjusted. The summary sheet summaries the findings for a particular example encouraging the student to deduce the formula for the gradient function.<br />
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The Function>Gradient activity provides the formula of 8 function, a mix of linear and quadratic, for students to differentiate to find the gradient function. Clicking on the empty cell reveals the answer.<br />
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The Gradient > Function activity requires the student to work backwards to find the original function given the gradient function.<br />
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The final activity provides a further opportunity to explore differentiation from first principles.<br />
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The workbook contains a further eight worksheets providing further questions for use in the classroom.<br />
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<b>Note:</b> this program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a user's machine.GradientGradient
http://stem.org.uk/rxdqf
http://stem.org.uk/rxdqfhttp://stem.org.uk/rxdqfThu, 12 Feb 2015 12:22:51 GMTMichael BawtreeThis resource contains two interactive excel programs which enable students to investigate cubic functions and the relationship between the factorised form and the graph. <br />
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<b>Factorising: Quadratics a=1</b> <br />
This excel file gives practice at factorising quadratic expressions where the coefficient of x<sup>2</sup> is 1. The student can choose to have the constant terms in the factors as both positive, both negative or a mixture. The sheets generate sets of quadratic functions and the student can click to reveal the correct factorisation. This workbook has a further eight sheets on factorising quadratics and related topics which can be duplicated for class use.<br />
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<b>Factorising: Quadratics a=2 and 3 Diff. of two squares</b> <br />
This interactive excel file deals with factorisation of quadratics including by Completing the square and also when the coefficient of x<sup>2</sup> is either 2 or 3. This file also has printable worksheets providing further practice at factorisation and sheets for solving quadratic equations which may be used for consolidation or extension work. <br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.FactorisingFactorising
http://stem.org.uk/rxdqe
http://stem.org.uk/rxdqehttp://stem.org.uk/rxdqeThu, 12 Feb 2015 12:17:59 GMTMichael BawtreeThis interactive excel program enables students to investigate cubic functions and the relationship between the factorised form and the graph. <br />
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The first activities require the student to use the factor theorem to factorise cubic polynomials and then to see the graphs. Alternatively students can toggle between the sets of polynomials and their graphs in order to find the factors. <br />
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Other sheets generate cubic polynomials and show how factors can be found by substituting values into the function, i.e. the Remainder Theorem. From this the graph of the cubic function can be viewed and the relationship between factors and graph clearly seen.<br />
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The resource also has four printable worksheets which may be used for consolidation or extension work. Topics include a number crossword about solutions to equations, translating cubic functions, plotting graphs and finding the gradient of a cubic function.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Cubics (Factorising and Graphing)Cubics (Factorising and Graphing)
http://stem.org.uk/rxdqd
http://stem.org.uk/rxdqdhttp://stem.org.uk/rxdqdThu, 12 Feb 2015 12:15:05 GMTMichael BawtreeThis excel program contains a series of interactive spreadsheets related to the equation of the circle. The first sheets enable the student to alter the radius and centre of the circles centred at the origin and elsewhere. The program allows the student to view the graphs of the circles as they transform.<br />
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The penultimate sheet generates circles and allows students to find and verify the centre, radius and the equation of the circle in the form <br />
(x+a)<sup>2</sup> + (y+b)<sup>2</sup> = r<sup>2</sup> and the alternate form<br />
x <sup>2</sup>+y <sup>2</sup>+2fx+2gy+c=0.<br />
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The final sheet generates circles and lines so that students can find and verify the points of intersection.<br />
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<b>Note</b> <br />
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.Circles - Equations and GraphsCircles - Equations and Graphs
http://stem.org.uk/rxdqc
http://stem.org.uk/rxdqchttp://stem.org.uk/rxdqcThu, 12 Feb 2015 12:12:07 GMTMichael BawtreeThis resource contains two excel programs; ‘Number Sequences: Linear’ and ‘Number Sequences: Non–linear’, each containing a series of interactive spreadsheets designed to explore number sequences requiring students to find a formula.<br />
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<b> Number Sequences: Linear</b> is designed for the teacher to lead students through a series of geometric patterns in which students explore the number patterns, derive a formula and plot the function on a graph leading to an understanding of why a linear sequence is so called. The final spreadsheets contain worksheets useful for consolidation.<br />
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<b> Number Sequences: Non-linear’ </b> is designed for the teacher to lead students through an exploration of triangular numbers, square numbers, pentagonal patterns and matchstick problems. The final spreadsheets contain worksheets useful for consolidation.<br />
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<b>Note</b>: This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machine.SequencesSequences
http://stem.org.uk/rxdqb
http://stem.org.uk/rxdqbhttp://stem.org.uk/rxdqbThu, 12 Feb 2015 12:09:09 GMTMichael BawtreeThis excel file contains a series of sheets which give practice in rearranging formulae and substituting values. Clicking on the subject of the formula reveals the rearranged form. The answers to the calculations are also available. <br />
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The topics of the formulae include dynamics, elastic strings, pendulum, force, electricity and lenses.<br />
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The workbook contains a further nine printable worksheets providing further questions for use in the classroom. Some of the later worksheets include the substitution of negative numbers, graphs of functions and quadratic graphs.<br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of your screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Formulae, Rearranging, EvaluatingFormulae, Rearranging, Evaluating
http://stem.org.uk/rxdqa
http://stem.org.uk/rxdqahttp://stem.org.uk/rxdqaThu, 12 Feb 2015 12:07:26 GMTMichael BawtreeThis excel file starts with a series of five sheets which show conversion graphs involving metric and imperial measures for height and weight and graphs for money conversions. The two money conversions allow the exchange rate to be altered. Units used include stones, kg, feet, meters, miles and km. <br />
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There are two sheets showing lists of conversions factors between metric and imperial measures. The resource also has eight printable worksheets suitable for classroom use or homework.<br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of your screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Conversion GraphsConversion Graphs
http://stem.org.uk/rxdq9
http://stem.org.uk/rxdq9http://stem.org.uk/rxdq9Thu, 12 Feb 2015 12:06:04 GMTMichael BawtreeThis excel workbook contains a series of sheets to help students explore different types of composite functions including linear, quadratic and reciprocal functions. <br />
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The first sheet allows students to input different numbers into a flowchart showing two different linear functions. Students work out and can check the expression for the composite function which is then simplified. The next four sheets involve linear-quadratic and linear-reciprocal composite functions. <br />
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In the final two sheets students combine two functions then solve an equation. Some of the solutions to the quadratic equations are given to 3 significant figures.<br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of your screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Composite FunctionsComposite Functions
http://stem.org.uk/rxdq8
http://stem.org.uk/rxdq8http://stem.org.uk/rxdq8Thu, 12 Feb 2015 12:04:52 GMTMichael BawtreeThis resource contains three excel programs; ‘Chessboard’, ‘Chess Cube’ and ‘Painted Cube, each containing a series of interactive spreadsheets designed to explore situations requiring students to find a formula.<br />
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<b>Chessboard</b> is designed for the teacher to lead students through a strategy for solving the classic problem of how many squares are there on a chessboard. The problem is set up then subsequent spreadsheets build up, step by step, the number of 1x1 squares, 2x2 squares etc. on different sized grids. A summary shows that the pattern created is the sum of the first and consecutive square numbers. The final spreadsheets contain further problems for students to explore.<br />
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<b>Chess Cube</b> extends the chess square problem to pose the problem of how many cubes are there in a 8x8x8 cube. The final spreadsheets contain further problems for students to explore.<br />
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<b>Painted Cube</b> is designed for the teacher to lead students through a strategy for solving the classic painted cube problem. The problem is set up then subsequent spreadsheets build up a step by step approach to how the problem can be solved. Summary sheets show how patterns are created, formulae derived and predictions made. The final spreadsheets contain further problems for students to explore. <br />
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<b>Note</b>: This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machineFinding a FormulaFinding a Formula
http://stem.org.uk/rxdq7
http://stem.org.uk/rxdq7http://stem.org.uk/rxdq7Thu, 12 Feb 2015 12:02:37 GMTMichael BawtreeThis resource contains two excel programs; ‘Removing and Collecting Like Terms’ and ‘Multiplying Out and Simplifying’, each containing a series of interactive spreadsheets designed to explore how to deal with brackets.<br />
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<b> Removing and Collecting Like Terms</b> begins with two spreadsheets for use in the classroom when explaining how to expand brackets of the form a(bx±c). Further spreadsheets are designed to explain how to expand and simplify expressions of the form a(bx±c) ± d(ex±f). The final spreadsheets contain a number of worksheets for use for consolidation. <br />
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<b> Multiplying Out and Simplifying</b> begins with spreadsheet for use in the classroom when explaining how double brackets, each containing a linear expression of the form (x+a), are expanded using a grid. There follows two further spreadsheets for consolidation. Further spreadsheets explore the expansion of (x+a)(x-b) and (x-a)(x-b) culminating in the expansion of (ax±b)(cx±d). The final spreadsheets contain a number of worksheets for use for consolidation.<br />
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<b>Note</b>: This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on a machineBracketsBrackets
http://stem.org.uk/rxdq6
http://stem.org.uk/rxdq6http://stem.org.uk/rxdq6Thu, 12 Feb 2015 12:00:32 GMTMichael BawtreeThis excel file contains a series of sheets which generate terms involving algebraic fractions which need to be combined and simplified. The different types include denominators which are single term, linear and quadratic expressions. <br />
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The quadratic expressions all have 1 as the coefficient of x2. For success in the more difficult types students need to factorise quadratic expressions and recognise the difference of two squares. The first three sheets provide answers.<br />
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The workbook contains a further three printable worksheets providing other questions related to algebraic fractions. <br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of your screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Algebraic FractionsAlgebraic Fractions
http://stem.org.uk/rxdq5
http://stem.org.uk/rxdq5http://stem.org.uk/rxdq5Thu, 12 Feb 2015 11:58:57 GMTMichael BawtreeThis excel file contains a series of sheets which generate different types of equations involving algebraic fractions. The different types include denominators which are single term, linear and quadratic expressions. The quadratic expressions all have 1 as the coefficient of x2.<br />
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Students need to be able to find common denominators of algebraic fractions. For success in the more difficult types students need to factorise quadratic expressions and recognise the difference of two squares. Answers are not available.<br />
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The workbook contains a further three printable worksheets providing further questions for use in the classroom.<br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Algebraic EquationsAlgebraic Equations
http://stem.org.uk/rxdq4
http://stem.org.uk/rxdq4http://stem.org.uk/rxdq4Thu, 12 Feb 2015 11:56:17 GMTMichael BawtreeThis excel program contains a series of interactive spreadsheets designed to give practice in substitution values into expressions containing either one or two variables. Positive or negative values may be selected.<br />
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The workbook contains a further six worksheets providing further questions for use in the classroom. The expressions to be evaluated develop from simple linear to more complicated expressions involving brackets and simple powers.<br />
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It is part of the Algebra: Expressing Relationships sub-collection.<br />
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<b>Note</b><br />
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This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of your screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.Algebra: SubstitutionAlgebra: Substitution
http://stem.org.uk/rxdq3
http://stem.org.uk/rxdq3http://stem.org.uk/rxdq3Thu, 12 Feb 2015 11:54:10 GMTMichael BawtreeThis resource looks at several aspects of the immune system including:<br />
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• The non-specific immune response <br />
• Specific immune response and antigen recognition<br />
• T cells and B cells<br />
• Autoimmune disease and allergic responses<br />
• Monoclonal antibodies<br />
• Long term immunity and vaccination<br />
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There is a section which explores some tricky issues around the ethical, legal and social aspects of the immune system and health. Whilst in the Real voices section, three people talk about the role of the immune system in their lives: a volunteer working on polio immunisation, a student who has Crohn’s disease, and Professor Bobby Gaspar, who researches immune diseases.Immune SystemImmune System
http://stem.org.uk/rxdof
http://stem.org.uk/rxdofhttp://stem.org.uk/rxdofWed, 11 Feb 2015 11:57:18 GMTWellcome TrustIn this demonstration of a displacement reaction, a piece of foil in the shape of a Christmas tree is placed in lead nitrate solution. Within a few minutes the tree becomes covered with sparkling crystals of lead.Zinc Christmas TreeZinc Christmas Tree
http://stem.org.uk/rxdob
http://stem.org.uk/rxdobhttp://stem.org.uk/rxdobWed, 11 Feb 2015 11:32:39 GMTSalters' Chemistry ClubIn this demonstration, a piece of paper is soaked in ethanol and water, the ethanol burns but the water prevents the paper burning. To make this demonstration very exciting, a £5 note can be used.The Non-burning £5 NoteThe Non-burning £5 Note
http://stem.org.uk/rxdoa
http://stem.org.uk/rxdoahttp://stem.org.uk/rxdoaWed, 11 Feb 2015 11:28:17 GMTSalters' Chemistry ClubIn this demonstration, the carbohydrate in the jelly baby is oxidised by the molten potassium chlorate(V). The jelly baby ignites and burns furiously with a high pitched roar, showing that food stuffs provide energy.Howling Jelly BabyHowling Jelly Baby
http://stem.org.uk/rxdo8
http://stem.org.uk/rxdo8http://stem.org.uk/rxdo8Wed, 11 Feb 2015 11:23:54 GMTSalters' Chemistry ClubThis demonstration illustrates the explosive nature of gas/air mixtures. The gas used in laboratory Bunsen burners (methane) normally burns with a blue or yellow flame. However, mixtures with air explode when the concentration of the methane is between 5 and 15%.Gas ExplosionGas Explosion
http://stem.org.uk/rxdo7
http://stem.org.uk/rxdo7http://stem.org.uk/rxdo7Wed, 11 Feb 2015 11:22:23 GMTSalters' Chemistry ClubThis demonstration shows how a mixture of hydrogen and air becomes explosive.<br />
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The initial pop is probably caused by a small portion of the hydrogen leaking out, mixing with the air immediately above the hole and forming a minute combustible mixture.<br />
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As more hydrogen escapes through the top hole, it continues to react with oxygen in the air and burns with an invisible and silent flame. At the same time, oxygen-containing air is drawn into the egg through the bottom hole and mixes with the remaining hydrogen. When enough air has entered to form a combustible mixture inside the egg, the flame backfires down through the hole and ignites the mixture. <br />
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Since the reaction is very exothermic, and since the holes in the egg are not large enough to accommodate the rapid expansion of the gases, the pressure inside the egg increases rapidly and it explodes into several small pieces.Egg-splosionEgg-splosion
http://stem.org.uk/rxdo5
http://stem.org.uk/rxdo5http://stem.org.uk/rxdo5Wed, 11 Feb 2015 11:17:06 GMTSalters' Chemistry ClubThis is a dramatic demonstration of chemiluminesence. When a small amount of water is injected into the flask containing ammonia, the ammonia dissolves. The reduction in pressure causes two solutions to be simultaneously drawn into and mixed in the inverted flask. This should produce a bright blue luminescent fountain.Chemiluminescent Ammonia FountainChemiluminescent Ammonia Fountain
http://stem.org.uk/rxdo4
http://stem.org.uk/rxdo4http://stem.org.uk/rxdo4Wed, 11 Feb 2015 11:15:29 GMTSalters' Chemistry ClubThis demonstration shows the oxidisation of hydrogen peroxide using ethanol and potassium permanganate. An exciting illustration of energy changes, the sound of these substances reacting with each other sounds like cannon fire.Cannon FireCannon Fire
http://stem.org.uk/rxdo3
http://stem.org.uk/rxdo3http://stem.org.uk/rxdo3Wed, 11 Feb 2015 11:12:35 GMTSalters' Chemistry ClubIn this demonstration, a colourless liquid and a blue liquid when mixed together emit a blue chemiluminescent glow. Light sticks are devices that produce a 'coolight' by means of a similar chemical reaction.Blue GlowBlue Glow
http://stem.org.uk/rxdnz
http://stem.org.uk/rxdnzhttp://stem.org.uk/rxdnzWed, 11 Feb 2015 11:08:38 GMTSalters' Chemistry ClubThis resource describes activities for an informal chemistry club. The aim is to convey the excitement of chemistry and develop students’ curiosity.<br />
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Activity 24: An investigation into the colour of metal salts and oxides by making coloured beads of borax glass using the flame of a Bunsen burner.<br />
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Activity 25: Blueprints are made by placing a drawing over a specially treated paper and exposing it to strong (UV) light. The blueprint is then washed (fixed). The light triggers a reaction that produces the pigment ‘Prussian blue’.<br />
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Activity 26: The concentrations of four solutions hold the secret that will undo the lock to a safe. Students use their skill at titration to find the letters and numbers of the combination.<br />
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Activity 28: Students investigate chemical reactions using common foods. They investigate which foods fizz when acid is added to them and which gas is given off. They then compare the amount of ‘fizz’ in different drinks.<br />
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Activity 29: Students investigate different shampoos by testing their pH, and by comparing flow properties, which makes the most lather and the grease removing properties.Salters' Chemistry Club Volume Two: Activities 24-29Salters' Chemistry Club Volume Two: Activities 24-29
http://stem.org.uk/rxdnx
http://stem.org.uk/rxdnxhttp://stem.org.uk/rxdnxWed, 11 Feb 2015 10:49:48 GMTSalters' Chemistry ClubAtom 1.0 XSLT+PHP Transform v1.1 (http://atom.geekhood.net)