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Author:
Jimmy Ma
GeoGebra
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斐波那契螺旋弧线（表格法-可动态调节）
撒针估算面积实验
龙形曲线-分形龙
活动三：应用性质
正方形雪花图案
Discover Resources
圓方程式
正多面體
三角函數由來= =
閱讀鐘面
瓜豆原理——动点跟随
Discover Topics
Percentages
Incircle or Inscribed Circle
Planes
Quadratic Functions
Prism