兴趣是推动学生学习的内驱动力,是学生发挥主体作用和教师发挥主导作用的结合点,也是发展学生能力的前提。教学实践证明,能否激起学生学习认知的积极性,提高学生的学习兴趣,培养学生的求知欲望,往往是教学成功的关键。数学课堂教学往往显得 Interest is the internal driving force to promote students ’learning. It is also the prerequisite for students’ abilities to develop the students ’main role and teachers’ leading role. Teaching practice proves that it can often arouse the enthusiasm of students to learn cognition, improve the students ’interest in learning and cultivate students’ curiosity desire, which is often the key to teaching success. Mathematics classroom teaching often appears