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一半模型归纳
Author:
math Ku
Topic:
Area
,
Geometry
GeoGebra
New Resources
畫出對稱圖形
画直线等分三角形的面积
四邉形 (四年級) 教師版
兩位數加法
兩位數除以一位數（二）
Discover Resources
記錄最大值
World's Second-Hardest Easy Geometry Problem
旋轉動畫
gjh-h03-01 摺紙問題的圖形
尺规作图_课本内容
Discover Topics
Planes
Diagrams
Arithmetic Operations
Trapezoid
Integers