I am about to teach Pie Charts to year 9 and have decided to look at reading and interpreting them first. I want them to understand that the slice of the pie is proportional to the number of people. So that if a third of the pie is one group then that might be 10 out of 30, 12 out of 36. So if you are comparing two pie charts side by side you need to know how many people are being represented.

Students need to see that if

90° represents 8 people

45° represents 4 people

135° represents 12 people

I want to ask questions (TRUE/FALSE) to see what misconceptions students have when understanding Pie Charts. There are lots of much better questions but these are what i have so far. I created this two way table for pie charts and it has two gaps for pie to be created to fit the remaining spaces.

Below are the ppt and worksheet for pie charts

Pie Charts

Pie Charts

Update!

Here is a little pie chart activity i used with my class when i taught proportion

Pie Charts

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