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Comparing fractions using number lines and rectangles
Author:
Eva Lai
GeoGebra
New Resources
四邊形的特性
兩組對邊相等的四邊形
三位數除以一位數（二）
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
Discover Resources
柱體
拋物線3--平行四邊形法
七巧板的副本
推移（x 方向）的副本
双动点求三角形最大面积演示
Discover Topics
Arithmetic Operations
Random Variables
Derivative
Mathematics
Addition