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Author:
谭伟
GeoGebra
New Resources
第八周作业
錐體建築師
算柱 (兩位數)
GeoGebra笔记功能体验课件
異分母分數減法
Discover Resources
Quiz on Naming of Congruent & Similar Triangles 全等及相似三角形的命名：測驗
barara magic stick
正弦函數的遞增與遞減
編織圓
和两个圆都相切的圆
Discover Topics
Pythagoras or Pythagorean Theorem
Linear Equations
Limits
Rectangle
Hypothesis Testing