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3-6-13
Author:
Tzuen Hsu
GeoGebra
New Resources
異分母分數減法
找出對稱軸
四邉形 (四年級) 教師版
球體建築師
拼砌四邊形
Discover Resources
小二、小三_時間（學生版）
Liu Hui's Method of Finding π
固定三角形的條件−題2的副本
爱心曲线
"拈" 類遊戲之一-搶21遊戲 The 21 game
Discover Topics
Step Functions
Natural Numbers
Square
Linear Regression
Kite