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Author:
陳兪宏
奕程老師的幾何問題
GeoGebra
New Resources
四邉形 (四年級) 教師版
找出對稱軸
錐體建築師
三位數除以一位數（一）
GeoGebra笔记功能体验课件
Discover Resources
貝氏曲線 (Bezier Curve)
Polygon Activity
Locus
Addition and Subtraction of Directed Numbers (2)
勾股定理的直观证明（义务教育数学 新课标-例82）
Discover Topics
Polygons
Planes
Reflection
Geometric Mean
Equations