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数轴上的整数加法
Author:
啊哦呃
数形结合，形象直观的整数加法。
GeoGebra
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兩位數除以一位數（二）
錐體建築師
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
找出對稱軸
Discover Resources
平行四邊形
rectangular
Vertex Form of Quadratic Functions(2) 二次函數的圖像：頂點式(2)
Triangular Prism 三角柱體
數線
Discover Topics
Root
Natural Numbers
Arithmetic Mean
Trapezoid
Expected Value