通过作图及利用图形的性质,将“数”的问题转化为形的同题,可使问题直观化、形象化,这种解题方法易于学生理解和掌握,能探求和检查解答的结果,还可避免复杂的计算与推导,有利于发展学生的思维。在高一结束新课后,加强这一方面的训练是必要的,下面谈谈借助图形解函数题的一点浅见。 Through mapping and using the nature of graphs, the problem of “number” is transformed into a similar problem of the form, which can make the problem visible and visualized. This kind of problem solving method is easy for students to understand and grasp, and can explore and check the results of the solution. It also avoids complicated calculations and derivation, which is conducive to the development of students’ thinking. It is necessary to strengthen the training in this area after the completion of the new class in the first year of high school. Let’s talk about the use of graphs to solve functional problems.