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Comparing fractions using number lines and rectangles
Author:
Eva Lai
GeoGebra
New Resources
異分母分數減法
兩位數除以一位數（二）
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
直角梯形
中國剪紙技術_蝴蝶花
數學繪圖
梯形的高
基础知识
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Sequences and Series
Normal Distribution
Logarithm
Tangent Function
Curve Sketching