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Author:
hou yi ting
孢落限
GeoGebra
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【案例】2013年安徽高考15题
四邉形 (四年級) 教師版
兩位數除以一位數（二）
找出對稱軸
四邊形的特性
Discover Resources
梯形中線
判斷線型函數y=f(x)=ax+b的b值
簡易統計
proof30黃煒皓
三圓相切
象形圖 (找出最多/最少)
Discover Topics
Pythagoras or Pythagorean Theorem
Tree Diagrams
Curve Sketching
Inequalities
General Quadrilateral