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Jiawen Yun
Author:
Jiawen Yun
GeoGebra
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直角坐標平面上的旋轉變換
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
兩位數加法
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觀察對數的對稱性
時鐘與數學
畢氏定理學生(林辰洋)
乘法的副本
手拉手模型
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Optimization Problems
Volume
Derivative
Exponent
Square