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Author:
chen mingchuan
GeoGebra
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兩組對邊相等的四邊形
異分母分數減法
【案例】2018年全国1卷理科12题
三位數除以一位數(二)
拼砌四邊形
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量度的誤差 Errors in Measurement
教學-棱柱摺紙樣式
圓柱截痕
椭圆的定义
Copy of 指數函數的圖像
Discover Topics
Equilateral Triangles
Coordinates
Geometric Transformations
Parallelogram
Plane Figures or Shapes