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椭圆的几何性质探究

椭圆的几何性质探究. 复习:椭圆的性质. 椭圆的范围 椭圆的对称性 椭圆的顶点 椭圆的离心率. 1 、椭圆的范围. y. x. 2 、椭圆的对称性. 3 、椭圆的顶点. 坐标轴与椭圆的四个交点叫做顶点. 4 、椭圆的离心率. 探究 1. 操作感知. 小心求证. 1. 2. 3. 4. y. x. O. 探究 1. 操作感知. 小心求证. 1. 2. 3. 4. 探究 1. 操作感知. 小心求证. y. O. x. 1. 2. 3. 4. 探究 1. 操作感知. 小心求证. y. x. O. 1.

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椭圆的几何性质探究

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  1. 椭圆的几何性质探究

  2. 复习:椭圆的性质 • 椭圆的范围 • 椭圆的对称性 • 椭圆的顶点 • 椭圆的离心率

  3. . • . 1、椭圆的范围 y x

  4. . • . 2、椭圆的对称性

  5. 3、椭圆的顶点 • 坐标轴与椭圆的四个交点叫做顶点

  6. . • . • . 4、椭圆的离心率

  7. 探究1 操作感知 小心求证 1 2 3 4 .

  8. . . y x O . 探究1 操作感知 小心求证 . 1 2 3 4 .

  9. 探究1 操作感知 小心求证 y . . . . O x 1 2 3 4 .

  10. 探究1 操作感知 小心求证 y . . . . x O 1 2 3 4 .

  11. 探究1 操作感知 小心求证 y . . . x O 1 2 3 4 .

  12. y • . x O . 探究2 操作感知 y . x O 1 2 3 4 .

  13. 探究3 操作感知 小心求证 • . 1 2 3 4 .

  14. 探究4 操作感知 • . • . 1 2 3 4 .

  15. 谢谢! 数缺形时少直觉, 形缺数时难入微。 数形结合百般好, 隔离分家万事非。 ————华罗庚 1 2 3 4 .

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