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優良作品2
Author:
Ching-Hui Chou
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
找出對稱軸
畫出對稱圖形
錐體建築師
Discover Resources
三角函數圖解
小二三 畫時鐘
zuiduan
KS2 數學
随机模拟实验（撒豆子估算π）的副本
Discover Topics
Arithmetic Operations
Conic Sections
Differential Calculus
Triangles
Coordinates