目标◇学生能熟悉椭圆的中心、顶点、焦距并能理解离心率的含义。◇学生能根据椭圆方程画出图像。◇学生会解决涉及椭圆的应用问题。应掌握的知识◇画二次函数图像。◇画圆。◇能解给定一个变量的方程。资源◇这节课教室里要有足够的计算机供学生使用,或人手一机,或小组合用。 The goal is for students to become familiar with the center, apex, and focal length of the ellipse and to understand the meaning of eccentricity. Students can draw images based on the elliptic equation. Students will solve application problems involving ellipses. The knowledge that should be mastered is to draw a quadratic function image. Draw a circle. You can solve the equation given a variable. Resources ◇ There should be enough computers for students to use in this classroom, or a staff or a small combination.