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優良作品1
Author:
Ching-Hui Chou
GeoGebra
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画直线等分三角形的面积
斜率的值
【案例】2018年全国1卷理科12题
平行線的斜率
三位數除以一位數（二）
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七巧板
Direct and Inverse Variation 正變與反變
Angles in a Circle:Property 1
二次函数图像的性质探究
拋物線代數性質,光學性質
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Kite
Isosceles Triangles
Parabola
Sequences and Series
Equilateral Triangles