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NCM(2nd)

Author:ISAAC LAM

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算柱 (兩位數)
四邊形的特性
拼砌四邊形
兩位數加法
錐體建築師

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垂心即內心
學生自行製作棒形圖
test1
勝者即正義
Completing the square(配方法)

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Geometric Transformations
Pythagoras or Pythagorean Theorem
Secant Line or Secant
Tangent Function
Functions

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