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Author:
Lin Ching Chieh
GeoGebra
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兩位數除以一位數（一）
兩位數加法
【案例】2013年安徽高考15题
拼砌四邊形
算柱 (兩位數)
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教學－橫切面
正四面體、正六面體、正八面體
P6 圓周01B
活動工作紙LEVEL01
畢氏定理
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Arithmetic
Poisson Distribution
Upper and Lower Sum or Riemann Sum
Confidence Interval
Pyramid