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test03繪本用
Author:
趙偉晉
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
錐體建築師
兩位數除以一位數（二）
Discover Resources
河內塔 (Tower of Hanoi)
正方體及正四面體的對稱性質
切割正立方體
硬幣換算小遊戲
翰林數學_2下_CH4-3_梯形中線性質
Discover Topics
Tangent Function
Congruence
Symmetry
Equilateral Triangles
Straight Lines