初中是一个人学习路上的瓶颈时期。此时学生的生理和心理方面开始发生变化,再加上人跟人的天资和后天学习程度不同,所处的社会环境和家庭环境不同,就会使得对数学知识的接受能力有所差异,此时再采用“统一传授”的教学方法,学生的学习质量就很难得到保证。本文对数学教改提出的分层教学进行分析,在了解数学分层教学的内涵和意义的基础上,重点探讨如何合理分层和分层后如何有效教学。 Junior high school is a bottleneck in the learning path. At this time, students’ physiological and psychological aspects begin to change. Coupled with the differences of human nature and acquired learning degree, the social environment and family environment in which they live are different from each other, which makes the acceptance of mathematical knowledge different. When using the “unified teaching” teaching methods, the quality of student learning is difficult to be guaranteed. Based on the understanding of the connotation and significance of mathematics stratification teaching, this paper focuses on how to effectively teach after stratification and stratification.