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利用Geogebra說明y=ax2＋bx＋c圖形性質
Author:
Galen_1
GeoGebra
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兩組對邊相等和有直角的四邊形
錐體建築師
兩位數除以一位數（一）
找出對稱軸
四邉形 (四年級) 教師版
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以剪貼比較圖形大小 題1
平面
外積分配律
P.6 圓周4A
Activity 3
Discover Topics
Normal Distribution
Ratios
Conic Sections
Exponent
Fractal Geometry