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Author:
李俊儀
GeoGebra
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sanjiaohanshu
直角坐標平面上的旋轉變換
兩位數加法
畫出對稱圖形
三位數除以一位數（一）
Discover Resources
ie 5
Rotation
二次函数与三角函数
geogebra和初中数学课程深度融合
扇形轉動動畫(模考第二題)
加减法练习
Discover Topics
Surface
Piecewise Functions
Line Segment
Percentages
Hyperbola