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滑桿動畫示範-2
Author:
侯杰材
GeoGebra
New Resources
四邉形 (四年級) 教師版
拼砌四邊形
柱體建築師
找出對稱軸
三位數除以一位數（二）
Discover Resources
Mobius strip
分解三棱柱
assigment7
three circle touching each other
grass eating
Discover Topics
Multiplication
Pie Chart or Circle Chart
Fractions
Curve Sketching
Continuity