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S0E2 勾股定理
Author:
Zelene
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
三位數除以一位數（一）
柱體建築師
拼砌四邊形
Discover Resources
齒輪連接的方法與轉動。
GGB3
找规律（数阵与点阵）
基督教宣道會宣基小學「STEM 遇上 GeoGebra」工作坊
ptccs2new4
Discover Topics
Pyramid
Curve Sketching
Cube
Difference and Slope
Linear Programming or Linear Optimization