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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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四邉形 (四年級) 教師版
畫出對稱圖形
兩位數除以一位數（二）
拼砌四邊形
找出對稱軸
Discover Resources
四角柱算體積
各立體展開圖
斜率
test P1的副本
我的第一个GGB绘本
Discover Topics
Definite Integral
Expected Value
Interest Calculation
Inequalities
Natural Numbers