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七巧板
Author:
Tse Sir
GeoGebra
New Resources
柱體建築師
球體建築師
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
判斷球體
Discover Resources
兩物體在時間 0 ~ 1 間，碰撞判斷
ETV 對稱
折纸—直三棱锥
Wave Interference
竞猜游戏：说出图中角的大小
Discover Topics
Scalene Triangles
Derivative
Optimization Problems
Rational Numbers
Percentages