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Author:
李春培
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GeoGebra
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小数 的副本
拼砌四邊形
兩位數加法
GeoGebra笔记功能体验课件
兩組對邊相等的四邊形
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鉛筆畫圓
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
基督教宣道會宣基小學「STEM 遇上 GeoGebra」工作坊
tan(x) = x
元旦快乐（制作：孟宝兴）
Discover Topics
Equilateral Triangles
Indefinite Integral
Arithmetic Mean
Similarity Transformation or Similarity
Sphere