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happy new year2
Author:
李春培
happy new year2
GeoGebra
New Resources
算柱 (兩位數)
四邊形的特性
四邉形 (四年級) 教師版
画直线等分三角形的面积
拼砌四邊形
Discover Resources
減法
二次方程及其圖像
上課
時鐘與數學
Copy of 展開圓面積 (講義版)
Discover Topics
Power Functions
Unit Circle
Rational Numbers
Straight Lines
Expected Value