An investigation by education department in 2000 reports middle school students in our country are generally lack of interest in math learning . therefore the motivation and promotion of the students " interest in math is significant to impel the " stuff education " and improve the teaching quality . the author impose her opinions on " interest in math learning basing on both the research in and out china and the teaching practice " 据我国教育部基教司2000年调查报告显示,我国中学生一般都欠缺对数学学习的兴趣, “没有丝毫兴趣的强制性学习,将会扼杀学生探求真理的欲望” ,大力培养和促进学生的数学学习兴趣,对于推进学校的素质教育,提高学科教育质量,具有十分重要的现实意义。