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動國旗
Author:
張丰耘
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
四邊形的特性
三位數除以一位數（二）
Discover Resources
代入消去法
勝者即正義
Quiz on Signs of Coefficients of Quadratic Functions 二次函數係數的正負號：測驗
穿越球
數學素養測驗卷
Discover Topics
Frequency Distribution
Angles
Pythagoras or Pythagorean Theorem
Triangles
Coordinates