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面積與周界活動
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lkkbmaths teachers 檔案儲存用
GeoGebra
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拼砌四邊形
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
異分母分數減法
Discover Resources
ggb-fs-a3 用物件表示分數比例
如何判斷曲線夠不夠圓
Similar triangles reasons
角度、弧度互換
探索黎曼和
Discover Topics
Cylinder
Incircle or Inscribed Circle
Definite Integral
Statistical Characteristics
Intersection