Drag sector boundaries around a degree-marked circle so each slice is its percent of 360°, read a sector's percent from its angle, and turn a percent of a total into a count.
A survey table lists categories with percents, and the player drags the sector boundaries around a circle whose rim is marked every 18° so that each slice spans its percent of 360° (percent × 3.6). Read rounds reverse it — find a sector's start and end on the rim, subtract for its angle, divide by 3.6 and set the percent on a slider — and count rounds turn a percent of a total into a count on a 0-to-total bar. It targets the misconception that a pie sector's size is a count rather than a share of the whole circle. Best for Grade 7.
A free, no-signup, no-ads math game for Grade 7 — practising percent, pie-charts, percent-of-a-total, angle-measure, proportional-reasoning. Play in your browser on the KidsDoMath games hub or explore more Data & Probability games.
By grade level: 7th Grade Math Games
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What math does Pie Chart Plaza practice? Pie Chart Plaza practices Percentages, Pie Charts, Percent of a Total, Angle Measure. A survey table lists categories with percents, and the player drags the sector boundaries around a circle whose rim is marked every 18° so that each slice spans its percent of 360° (percent × 3.6).
What grade is Pie Chart Plaza for? Pie Chart Plaza is built for Grade 7 (ages 12–13). It sits in the Data & Probability strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Pie Chart Plaza? Drag sector boundaries around a degree-marked circle so each slice is its percent of 360°, read a sector's percent from its angle, and turn a percent of a total into a count.
Is Pie Chart Plaza free to play? Yes. Pie Chart Plaza is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.