This Cre8ate maths activity draws on measuring stretchiness which involves the collection of real data, calculating percentages and experimental design.
This resource models one way in which engineers use their knowledge of mathematics to investigate the properties of materials. Here students investigate the stretchiness of jelly sweets, they are provided with a prompt card which suggests that they consider the condition of the material, length of time that the stretch should be applied and the type of sweet being used.
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Posted by sarahpage on 11th May 2011
Activity time:2 hours
Level / prior knowledge: Level 4/5, percentages, measure,
Subject / curriculum links / skills: Percentages increases
Preparation time: 30 mins - making smartboard for the lesson, looking over the lesson, buying and bagging up different types of sweets, making data collection sheets.
Extra resources: Smartboard file, sweets.
I used this resource with year 7 set 5 (level 4) during investigation week. To make the experiment easier I told them how to work out percentage increases with a calculator. A more able group can probably do this more independently. It also took my class 2 lessons (experiment and analysis) a more able group you could do it in less time.
The lesson was easy to follow with a good example of analysis. As a class we investigated types of sweet stretchiness. The pupils really enjoyed the experiment, they were engaged for the whole hour and did not realise they were doing work. The next lesson we discussed how to analyse the data, using the example, this helped pupils focus on what they needed to put on their poster for each type of sweet. To end, pairs explained what they had found out, using their poster.