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4的倍数圆形分类

4的倍数圆形分类
几何画板及绘图内容加载中，请稍等……
2020-03-17 12:49
圆多边形几何作图
①本范例演示如何通过圆形对4的倍数进行分类；②涉及的核心数学概念包括倍数、分类、圆形属性；③作图要点：使用了Shuffle, Element, Circle, Polygon, Sequence等GeoGebra命令和对象；④适合初中数学教学，用于理解倍数与图形分类的关系。

GeoGebra 命令及参数

  1. Shuffle(listp) → listq, {(14, 14), (8, 14), (11, 14), (3, 11), (2, 14), (6, 11), (9, 11), (15, 11), (12, 11), (5, 14)}
  2. Element(listq, 1) → P1
  3. Element(listq, 2) → P2
  4. Element(listq, 3) → P3
  5. Element(listq, 4) → P4
  6. Element(listq, 5) → P5
  7. Element(listq, 6) → P6
  8. Element(listq, 7) → P7
  9. Element(listq, 8) → P8
  10. Element(listq, 9) → P9
  11. Element(listq, 10) → P10
  12. Circle(P1, rR) → aa
  13. Circle(P2, rR) → bb
  14. Circle(P3, rR) → cc
  15. Circle(P4, rR) → dd
  16. Circle(P5, rR) → ee
  17. Circle(P6, rR) → ff
  18. Circle(P7, rR) → gg
  19. Circle(P8, rR) → hh
  20. Circle(P9, rR) → ii
  21. Circle(P10, rR) → jj
  22. Shuffle(listquestion) → listqn, {1, 3, 6, 10, 2, 5, 4, 7, 8, 9}
  23. Element(listqn, elm) → qQ
  24. Polygon((2, 9), (2, 13), (a / 4 + 2, 13), (a / 4 + 2, 9)) → q1, f, g, h, i
  25. Sequence(Segment[(2, 9 + n), (12, 9 + n)], n, 0, 4) → l1
  26. Sequence(Segment[(m, 9), (m, 13)], m, 2, 12) → l2