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優良作品3(昀潔)
Author:
Ching-Hui Chou
GeoGebra
New Resources
四邉形 (四年級) 教師版
異分母分數減法
三位數除以一位數（二）
錐體建築師
算柱 (兩位數)
Discover Resources
linear function
凸透镜成像
Bricks
教學媒體10/02
小一_比較20以內的數
Discover Topics
Surface
Linear Programming or Linear Optimization
Ellipse
Scalene Triangles
Bar Chart or Bar Graph