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我最喜愛的季節
Author:
Chuang Chi Ching
GeoGebra
New Resources
四邉形 (四年級) 教師版
画直线等分三角形的面积
第八周作业
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
deductive geometry
Drag blue dots, any observation about H,G,O?
百分數：折扣 / 賺賠
周界-平移法(教學練習一)
圓周公式應用題2的副本
Discover Topics
Conditional Probability
Trapezoid
Centroid or Barycenter
Linear Equations
Rectangle