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Polygonal numbers

Author:Tung Chao
Topic:Numbers
Use triangular and square numbers to investigate number patterns

New Resources

  • 判斷球體
  • 球體建築師
  • 兩位數除以一位數(一)
  • 【案例】2018年全国1卷理科12题
  • 算柱 (兩位數)

Discover Resources

  • Sequence指令練習(逐一套疊正方形)
  • 垂心問題
  • 二年級_柱體的觀察
  • 圓和弦圓和弦的副本
  • Rotational Symmetry的副本

Discover Topics

  • Pie Chart or Circle Chart
  • General Quadrilateral
  • Quadrilaterals
  • Plane Figures or Shapes
  • Intersection
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