“老师的问题,想一下就会,不过我就不愿去想。”这是一位学生在数学观摩课后对笔者问题的回答。“想一下就会”说明学生的智力很好;而“我就不愿去想”深深地震撼着我的心,这说明学生缺乏学习的积极主动性,缺乏学习兴趣。现代心理学研究表明:学习兴趣是一个非智力因素的问题,它能激发和引导人们的思想和意志,从而努力去探索某种事物的真正内涵,直接促进其智力发挥和学习兴趣及效率的提高,那么,在数学教学中,教师应如何根据学生的认知规律充分调动学生的兴趣呢?笔者认为: “Teacher’s question, think about it, but I do not want to think about it.” This is a student in mathematics after class to answer the author’s questions. “Think about it ” shows that the students’ intelligence is very good; and “I do not want to think ” deeply shocked my heart, indicating that students lack the enthusiasm of learning, the lack of interest in learning. Modern psychology research shows that: interest in learning is a non-intellectual factors, it can inspire and guide people’s thoughts and will, and strive to explore the true meaning of something, and directly promote their intelligence and interest in learning and improve efficiency , Then, in mathematics teaching, how should teachers fully mobilize the students ’interest according to the students’ cognitive rules? The author thinks: