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[S3] a GeoGebra file created by a pre-service teacher Peter (pseudonym)
Author:
Chan Yip-Cheung
GeoGebra
New Resources
球體建築師
四邉形 (四年級) 教師版
【案例】2013年安徽高考15题
畫出對稱圖形
兩位數除以一位數（二）
Discover Resources
分數加法和減法
動國旗
two-example
內心
拋物線6-包絡線法
Discover Topics
Scalene Triangles
Complex Numbers
Upper and Lower Sum or Riemann Sum
Inequalities
Rectangle