Show how to scale up simple proportions like 13 out of 20 to make them into percentages. Based on the results of a survey on pet ownership. Use pie charts to visualise the results. Understand percentages as ‘number of parts per hundred’.
This colourful powerpoint presentation and accompanying worksheet allow you to revise/teach different ideas using an easy to understand situation and could be the basis for further work on data collection.
DfE references for GCSE 9-1 R9, S2
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