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象限
Author:
李春培
GeoGebra
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画直线等分三角形的面积
異分母分數減法
球體建築師
錐體建築師
兩位數除以一位數（二）
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優良作品4(昀潔)
Fractal Roulette
day01_01
小一
GeoGebra绘本团队-绘本范例
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Distributions
Right Triangles
Similar Triangles
Curve Sketching
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