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奠基活動20141008
Author:
user17840
奠基樞紐定理
GeoGebra
New Resources
異分母分數減法
兩位數除以一位數（二）
畫出對稱圖形
直角坐標平面上的旋轉變換
四邊形的特性
Discover Resources
圓內弦中點軌跡
較複雜的周界問題(一)
Locus (Two points 2)
laptop height
"拈" 類遊戲之一-搶21遊戲 The 21 game
Discover Topics
Pythagoras or Pythagorean Theorem
Correlation
Trigonometric Functions
Tree Diagrams
Kite