“用二分法求方程的近似解”是高中新课程中新增的数学内容安排这一内容的目的,不仅能让学生认识到“二分法”是求方程近似解的一种方法,而且能使学生更深刻地体会函数的应用,加强知识间的联系性由于“二分法”的操作过程实际上是一个不断重复同样步骤的极 The “approximate solution of the equation by using the dichotomy method” is the purpose of the new mathematics content arrangement in the new curriculum of high school. It not only allows students to realize that the “dichotomous method” is a method for solving approximate equations. , but also enables students to experience the application of functions more profoundly, and strengthen the connection between the knowledge because the operation of the “dichotomy” is actually a pole that repeats the same steps continuously.