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Directed numbers
Geogebra infographic
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Author:
Chan Yip-Cheung
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Directed numbers
Geogebra infographic
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Directed numbers
New Resources
球體建築師
兩組對邊相等和有直角的四邊形
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
Discover Resources
兩個點波源產生的波紋
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No.1
爱心
Solve ax + b = c | 解方程（樣式： ax + b = c ）
Discover Topics
Incircle or Inscribed Circle
Square
Cuboid
Constructions
Linear Programming or Linear Optimization
