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Shading Venn Diagrams

Shading Venn Diagrams
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2018-07-12 21:43
FunctionProbability & StatisticsGeometric Construction
This example demonstrates how to use GeoGebra to shade Venn diagrams. Key mathematical concepts include set theory, specifically intersections, unions, and complements. Using commands like Segment, If, Element, Length, and Polygon, complex Venn diagrams can be constructed. Suitable for middle school and above students to learn about set operations.

GeoGebra Commands & Parameters

  1. Segment((x_1, y_1), (x_1, y_2)) → e
  2. Segment((x_1, y_2), (x_2, y_2)) → f
  3. Segment((x_2, y_1), (x_2, y_2)) → g
  4. Segment((x_2, y_1), (x_1, y_1)) → h
  5. If(IsGreen1, 0, 1) → RB1
  6. If(IsGreen1, 0.4, 1) → G1
  7. If(IsGreen2, 0, 1) → RB2
  8. If(IsGreen3, 0, 1) → RB3
  9. If(IsGreen4, 0, 1) → RB4
  10. If(IsGreen2, 0.4, 1) → G2
  11. If(IsGreen3, 0.4, 1) → G3
  12. If(IsGreen4, 0.4, 1) → G4
  13. Element(problem, item, 1) → textitem
  14. Length(problem) → i
  15. Element(problem, item, 2) → key
  16. Polygon(Corner[1], Corner[2], Corner[3], Corner[4]) → poly1, l, m, n, q
  17. Corner(5) → G