六年级上册：圆的面积公式推导
2020-05-17 02:45
本GeoGebra范例动态演示了小学六年级数学中圆的面积公式的推导过程。通过将圆等分成多个扇形，并利用旋转、平移和拼接等几何变换，将圆转化为近似的长方形。随着等分份数的增加，拼成的图形越来越接近长方形，从而直观地推导出圆的面积公式S=πr²。该课件有助于学生理解极限思想与几何变换在面积推导中的应用。
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</geogebra>