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學習活動二之二參數與圖形結構的關係
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CIY
GeoGebra
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判斷球體
sanjiaohanshu
兩組對邊相等的四邊形
第八周作业
近似值:有效數字
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直線坐標標點
學習單:三角形面積
三角形的三中線交於一點(重心)
數學傳播39卷4期, 平面幾何公式思考
网易
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Perimeter
Square
Differential Calculus
Pythagoras or Pythagorean Theorem
Power Functions