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Author:
Yin Kelvin Wong
GeoGebra
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四邊形的特性
畫出對稱圖形
四邉形 (四年級) 教師版
三位數除以一位數(二)
兩組對邊相等和有直角的四邊形
Discover Resources
Sequence指令練習(一維)
中點軌跡(動點在兩圓上)
動畫
總結
y=a*tan(b*x)
Discover Topics
Conic Sections
Isosceles Triangles
Rotation
Means
Calculus