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proof*5 張華炘
Author:
郭亮偉
GeoGebra
New Resources
球體建築師
四邉形 (四年級) 教師版
三位數除以一位數（一）
判斷球體
拼砌四邊形
Discover Resources
立方體展開圖
ladder
正六角柱
手拉手模型
玖数小学数学（思维拓展）
Discover Topics
Probability
Sphere
Ratios
Cuboid
Combinatorics