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lkkbmaths teachers 檔案儲存用
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
兩位數除以一位數（一）
四邉形 (四年級) 教師版
GeoGebra笔记功能体验课件
Discover Resources
相似多邊形-縮放的性質
公因數應用題2
Functions
擴分、約分及比較大小
Ex (RHS)
Discover Topics
Centroid or Barycenter
Plane Figures or Shapes
Vectors
Difference and Slope
Tangent Line or Tangent