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優良作品6
Author:
Ching-Hui Chou
GeoGebra
New Resources
三位數除以一位數（一）
四邉形 (四年級) 教師版
拼砌四邊形
找出對稱軸
四邊形的特性
Discover Resources
行列式計算平行四邊形面積
正四角錐兩側面夾角
禪繞畫
全等双子模型（等腰三角形）
模拟龟兔画板
Discover Topics
Mathematics
Area
Pythagoras or Pythagorean Theorem
Poisson Distribution
Arithmetic Operations