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鉛筆畫圓
Author:
Ching-Hui Chou
GeoGebra
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兩位數加法
画直线等分三角形的面积
柱體建築師
異分母分數減法
四邉形 (四年級) 教師版
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數位學習社103 12 15
线段的最值
教學資源P1~6
霓虹燈
三角形的心
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Square
Volume
Statistics
Equations
Inequalities