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厚會聚透鏡 Thick Convergent Lens
Author:
W.L. Wong, Albert
GeoGebra
New Resources
錐體建築師
兩位數除以一位數（一）
異分母分數減法
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
我的测试
直角三角形與正三角形
三節棍
Copy of 數線的繪製
环形跑道问题案例的制作
Discover Topics
Geometric Distribution
Optimization Problems
Binomial Distribution
Scalene Triangles
Triangles