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Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
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兩位數加法
【案例】2013年安徽高考15题
拼砌四邊形
直角坐標平面上的旋轉變換
兩組對邊相等和有直角的四邊形
Discover Resources
捷徑
滑桿分段控制的基礎
正n凸多邊形旋轉對稱／反射對稱
B4 4-1 平行線性質
Conics
Discover Topics
Functions
Expected Value
Inequalities
Trapezoid
Median Line