一、教材分析1.本课时在教材中的地位和作用在高中数学课程中,解一元二次方程,解二元线性方程组,二分法,判定平面直角坐标系中直线与圆的位置关系,建立线性回归方程等,都是算法的典型实例。由此可见,算法思想贯穿整个高中数学中,算法概念的学习与 First, the analysis of teaching materials 1. The status and role of the lesson in the teaching materials in the high school mathematics curriculum, the solution of a quadratic equation, solution of binary linear equations, dichotomy, determine the position of the straight line and the circle in the rectangular coordinate system, Establishing linear regression equations, etc., are typical examples of algorithms. From this it can be seen that the idea of ​​the algorithm runs through the whole high school mathematics, learning the concept of the algorithm and