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Visualizing Percentages by Lee W Fisher

Visualizing Percentages by Lee W Fisher
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2018-11-20 04:30
CircleProbability & StatisticsGeometric Construction
This example visually demonstrates the concept of percentages using fractions and circular sectors. It utilizes GeoGebra commands such as Sequence and CircleSector to dynamically show how percentages are distributed in a circle. Suitable for middle school and above students to learn probability and geometry.

GeoGebra Commands & Parameters

  1. Sequence((cos(((n * 2) * pi / parts)), sin(((n * 2) * pi / parts))), n, 1, parts) → l1
  2. CircleSector((0, 0), (1, 0), (cos(((partstaken * 2) * pi / parts)), sin(((partstaken * 2) * pi / parts)))) → e
  3. Sequence((cos(((m * 2) * pi / 100)), sin(((m * 2) * pi / 100))), m, 0, 100) → l2
  4. CircleSector((0, 0), (1, 0), (cos(((partstaken * 2) * pi / parts)), sin(((partstaken * 2) * pi / parts)))) → f