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厚會聚透鏡 Thick Convergent Lens
Author:
W.L. Wong, Albert
GeoGebra
New Resources
兩位數加法
四邊形的特性
三位數除以一位數（二）
判斷球體
兩位數除以一位數（二）
Discover Resources
畢氏樹
空間中正立方體
Division Algorithm & Remainder Therorem 除法算式與餘式定理
达芬奇椭圆仪
正三角形在长方形边上移动加滚动
Discover Topics
Unit Circle
Geometric Transformations
Numbers
Vectors 2D (Two-Dimensional)
Hypergeometric Distribution