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滑桿動畫
Author:
魏妙芳
GeoGebra
New Resources
四邉形 (四年級) 教師版
GeoGebra笔记功能体验课件
算柱 (兩位數)
近似值：有效數字
兩位數除以一位數（二）
Discover Resources
Box method for multiplication
Hypocycloid Wheel
畢氏定理2
螺旋正方形
顶点在正方形对角线上的等腰三角形构成了一个等腰直角三角形
Discover Topics
Random Variables
Derivative
Tree Diagrams
Equations
Quadratic Equations