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Author:
葉天宏
GeoGebra
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GeoGebra笔记功能体验课件
兩位數加法
兩組對邊相等的四邊形
拼砌四邊形
三位數除以一位數（二）
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角平分線-1
平移
比較數量-1
橢圓2--四圓心近似法
我的第一个GGB绘本
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Logic
Equilateral Triangles
Hypothesis Testing
Parallelogram
Poisson Distribution