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龍騰4_1-1課例4
Author:
廖傑成
GeoGebra
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兩位數加法
四邉形 (四年級) 教師版
判斷球體
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
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peacock
三角形的四心－五線－內外二圓
題6
二元一次方程式 1
GeoGeBra畫橢圓形的動態軌跡
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Multiplication
Mode
Continuity
Median Line
Secant Line or Secant