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C60足球模型（金丝彩球）
Author:
孟宝兴
C60足球模型（金丝彩球）
GeoGebra
New Resources
四邊形的特性
拼砌四邊形
畫出對稱圖形
兩組對邊相等的四邊形
兩位數除以一位數（一）
Discover Resources
四下_認識小數(教師版)
Area of polygon
正方形和長方形有甚麼特性？的副本
三節棍
Measuring areas by placing different shapes
Discover Topics
Cube
Stochastic Process or Random Process
Perimeter
Sphere
Translation