Maths · Interpreting a sector of a pie chart
Pie Reader
Tap the Drama sector. Then say what fraction of the whole pie it covers, written as simply as it goes.
Free to use and free to share. There is no sign-up, no score, and nothing a child does here is recorded or sent anywhere. What you may do with it, in full.
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Why this works
The pie is cut into 8 equal parts and Drama covers 2 of them, which is , and that simplifies to . The bottom of the fraction counts EVERY part of the pie, the Drama sector included. Comparing it with what is left over instead of with all of it is the commonest way a pie chart is misread, and it is the reason the whole pie is the thing you measure against.
Helping a child through Pie Reader
It runs in 2 steps
- 1. Find it. Tap the sector the question names.
- 2. Read it. Now choose the fraction it covers.
Hints, least revealing first
- Find the bar, row or slice the question names before you read anything. Getting the label right matters as much as the reading.
- The scale does not always count up in single steps. Work out what a single line is worth before you read anything off it.
- Keep your finger level as you slide from the board across to the scale. Drifting up or down by a line is the commonest slip there is.
When they finish it: “Measured against the whole pie.”
11+ skill this exercise practises
It has its own page, with a worked example on it.
All maths 11+ skillsYou can reuse this. Here is exactly how far that goes
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Embed this exercise
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Pie Reader practises one skill. Maths has 55 of them
A free diagnostic covers every maths skill and the other three subjects, and comes back with a shortlist rather than a list.