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20170517pythagoras
Author:
翁瑞檡
GeoGebra
New Resources
兩位數加法
兩位數除以一位數（二）
【案例】2013年安徽高考15题
判斷球體
四邉形 (四年級) 教師版
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X^3 vs 3^X
Copy of 劉徽的「割圓術」
滑桿
探索勾股三元数
分苹果除法
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Quadratic Equations
Calculus
Secant Line or Secant
Pyramid
Functions