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花瓣紋章
Author:
陳隆期
GeoGebra
New Resources
四邉形 (四年級) 教師版
畫出對稱圖形
異分母分數減法
兩位數加法
兩組對邊相等和有直角的四邊形
Discover Resources
平行四邊形之變奏I
數軸
sinx & cscx
周长相等，正方形，长方形和正三角形，圆面积大小比较
拋物面的光學性質
Discover Topics
Expected Value
Incircle or Inscribed Circle
Multiplication
Planes
Pythagoras or Pythagorean Theorem