《数学课程标准》指出:“数学不仅要考虑自身的特点,更应遵循学生学习数学的心理规律。强调从学生已有的生活经验出发,让学生亲身经历将实际问题抽象成数学模型并进行解释与应用的过程,进而使学生获得对数学理解的同时,在思维能力、情感态度与价值观等多方面得到进步和发展。”这就要求我们教师要更新观念,树立以学生为本的 Mathematical Curriculum Standards states: “Mathematics should not only consider its own characteristics, but also follow the psychological laws of students learning mathematics. Emphasis on students’ existing life experience, let students experience the abstract problem into a mathematical model and conduct Explain and apply the process, and then make students gain understanding of mathematics at the same time, in the thinking ability, emotional attitude and values, and many other aspects of progress and development. ”This requires us teachers to update their ideas and establish a student-oriented