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折叠问题一例
Author:
孟宝兴
GeoGebra
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畫出對稱圖形
【案例】2013年安徽高考15题
画直线等分三角形的面积
判斷球體
直角坐標平面上的旋轉變換
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奠基活動20141008
有向角
會動的圖形
反射對稱
中國傳統剪紙_團花
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Prism
Polynomial Functions
Incircle or Inscribed Circle
Curve Sketching
Random Experiments