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GeoGebra
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GeoGebra
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原充老師
GeoGebra
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撒针估算面积实验
科赫雪花
斐波那契螺旋弧线(表格法)
平行線的判定
异形操场
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優良作品5(沛綺)
What's wrong
長方形面積法 _單項式乘法
平行四边形平移
任务1:一次、二次函数的绘画
Discover Topics
Percentages
General Quadrilateral
Geometry
Division
Arithmetic