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Author:
孟宝兴
GeoGebra
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四邉形 (四年級) 教師版
画直线等分三角形的面积
兩組對邊相等的四邊形
拼砌四邊形
畫出對稱圖形
Discover Resources
長方體旋轉
quadrilaterals 6
三圓相切
與三半圓相切之圓填色
ghk99a29 扇形旋轉
Discover Topics
Rational Numbers
LCM and GCD
Triangles
Boxplot
Standard Deviation