有效的数学教学始终要关注着学生主体与教学内容、学生主体内部及主体之间的动态关系。在教学中,教师要借助学生熟悉的生活情境和感兴趣的事例,在课前、课堂、课后的学习过程中强化学生主体探求的渴望和获取的信心,以习得知识,形成能力,发展数学素养。 Effective teaching of mathematics always pays close attention to the dynamic relationship between students ’main body and teaching contents, students’ internal and internal subjects. In teaching, teachers should make use of the students ’familiar life situations and interesting examples to reinforce the students’ longing desire and acquired confidence in the process of class, class and after-class study so as to acquire knowledge, form ability and develop Mathematical literacy.