数学教学的任务,不但要使学生获得一些必要的数学知识,更要使学生掌握一定的数学思想方法.数学思想是数学的灵魂.布鲁纳曾说:“掌握数学思想,可使得数学更容易理解和更容易记忆,领会数学思想是通往迁移大道的光明之路”辩证思想是数学思想中最重要的一个方面.加强辩证思想的教学,可使学生的思维品质达到更高层次,使进学生的素质全面提高. The task of mathematics teaching is not only to enable students to acquire some necessary mathematical knowledge, but also to enable students to master certain mathematical thinking methods. Mathematical thinking is the soul of mathematics. Bruner once said: “Mastering mathematical thinking can make mathematics easier Understanding and easier to remember, comprehend the idea of ​​mathematics is a bright road leading to the relocation of the road "dialectical thinking is the most important aspect of mathematics thinking. Intensify the teaching of dialectical thinking, can make students’ thinking quality reach a higher level, make progress The quality of students has been fully improved.