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Ng KC
GeoGebra
New Resources
兩組對邊相等的四邊形
錐體建築師
兩位數加法
三位數除以一位數（一）
四邉形 (四年級) 教師版
Discover Resources
waaachen
觀察對數的對稱性
YIPPUIMEIgeogebra
會暫停的指針
湖南省中职数学教师省培（GeoGebra培训案例）
Discover Topics
Interest Calculation
Perimeter
Triangles
Kite
Quadrilaterals