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repetitive squares by excel
Author:
Sheu Anderson
GeoGebra
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兩位數加法
四邉形 (四年級) 教師版
兩位數除以一位數（一）
三位數除以一位數（二）
錐體建築師
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挑战中考压轴题
畢式定理（丞昀）
認識GeoGebra--相似三角形
優良作品7(孟倫)
GGB6
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Ellipse
Parallelogram
Exponential Functions
Conic Sections
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