现代教学理论指出,当前看教师的主导作用,已经不只看教师的讲授水平,更重要的是看教师在教学过程中能否调动学生的学习积极性,激发学生的学习兴趣。从心理角度看,学生的求知欲望是一种内在的兴趣,是一种强大的学习动力。学生一旦对数学有了兴趣,就能产生巨大的 The modern teaching theory points out that at present the teacher’s leading role has not only looked at the teaching level of teachers, but more importantly, it can see whether teachers can arouse their enthusiasm in learning and stimulate students’ interest in learning. From a psychological point of view, students desire for curiosity is an inherent interest, is a powerful learning motivation. Once students have an interest in mathematics, can produce huge