在新课标下,要求教师以学生为中心,突显学生的课堂主体地位.另一方面,由建构主义看,知识学习是新旧知识与经验在相互作用下的一个构建过程.因此,在初中数学教学中,教师应引导学生结合自身实际,联系原有知识与经验来分析与解决问题,这样他们才会形成新的认知结构,获得 Under the new curriculum standard, teachers are required to focus on students and highlight students’ position in the classroom.On the other hand, from the perspective of constructivism, knowledge learning is a process of constructing under the interaction between new and old knowledge and experience.Therefore, In teaching, teachers should guide students to combine their own reality, contact the original knowledge and experience to analyze and solve problems, so that they will form a new cognitive structure, access to