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Author:
Zhang Guangmin
GeoGebra
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撒针估算面积实验
科赫雪花
异形操场
平行線的判定
折扣
Discover Resources
橫斷式研究之樣本數估計（Outcome為odds ratio）
藝術著色
Copy of 教學－與直線有關的角
圓周公式應用題2的副本
圆-视觉差
Discover Topics
Trigonometric Functions
Dilation
Angles
Matrices
Cuboid