论文部分内容阅读
笔者有一次听了一节公研课,教学内容是曲线的方程,其中有一道练习题:求到两条互相垂直的直线的距离之积等于常数k(k>0)的点的轨迹方程。笔者在教学中针对一些问题进行了反思。
I once heard a section of public research, teaching content is the equation of the curve, including an exercise: find the distance between two perpendicular to each other is equal to the constant k (k> 0) point trajectory equation. The author made some reflections on some problems in teaching.