“同课异构”是指不同的教师面对相同的教材,结合所教学生的实际情况,根据自己的生活经历、知识背景、情感体验建构出不同意义的设计,呈现出不同教学风格的课堂,赋予静态教材以生命活力的一种教学形式.“同课异构”能让我们在比较中反思,在反思 The “same class isomerism” means that different teachers face the same teaching materials, combine the actual conditions of the teaching students, and construct different designs according to their own life experience, knowledge background and emotional experience, presenting different teaching styles. Class, a form of teaching that imparts vitality to static teaching materials.“Classification Heterogeneity” allows us to reflect on comparisons and reflect on