《数学课程标准》明确指出:新一轮的课程改革,要改善教与学的方式,教师要创设适当的问题情境,让学生主动地学习,自主发现数学中存在的规律和问题解决的途径,使他们经历探究新知识形成的过程。由于高中学生具有一定的理解能力和逻辑思维能力,教师可以创设适当的问题情境,以便于展开探究、讨论等教学活动,促使学生在问题情境中进行科学严谨的探索,达到解决 The standard of mathematics curriculum clearly states: In the new round of curriculum reform, the teaching and learning methods should be improved. Teachers should create appropriate problem situations so that students can learn actively and find out the existing laws in mathematics and ways to solve problems. So that they experience the process of exploring the formation of new knowledge. Because high school students have a certain ability of understanding and logical thinking, teachers can create appropriate problem situations in order to facilitate the exploration, discussion and other teaching activities to promote students in the context of the problem of scientific rigorous exploration to reach a solution