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Activity 3
Author:
lamanleung
GeoGebra
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画直线等分三角形的面积
兩位數加法
兩組對邊相等的四邊形
算柱 (兩位數)
三位數除以一位數（二）
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拋物線軌跡圖
一元二次方程求根公式
爱奇艺
河內塔 (Tower of Hanoi)的副本
Quiz on Solving One-step Linear Equations (1)
Discover Topics
Trapezoid
Parabola
Matrices
Similarity Transformation or Similarity
Subtraction