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Math
Author:
fung yiu cho
GeoGebra
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畫出對稱圖形
兩位數加法
兩位數除以一位數（一）
球體建築師
【案例】圆柱体内放置一个大球六个小球
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挑战中考压轴题
動態畢氏定理
優質教育基金計劃中期分享會 (26/6/2015)
橢圓2--四圓心近似法
初中动点问题的制作方法-单位向量法
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Inequalities
Volume
Linear Equations
Tangent Line or Tangent
Straight Lines