变式教学是指在教学过程中通过变更概念非本质的特征、改变问题的条件或结论、转换问题的形式或内容,有意识、有目的地引导学生从“变”的现象中发现“不变”的本质,从“不变”的本质中探究“变”的规律的一种教学方式.一、类比变式,提升学生理解数学概念的能力初中数学具有一定的抽象性,许多数学概念概括性比较强,学生理解非常困难;有些知识包含了隐性内容,仅仅依靠老师的情景创设和知识讲解,学生可能无法全面理解数学的内涵. Variant teaching refers to changing the non-essential characteristics of the concept during the teaching process, changing the conditions or conclusions of the question, changing the form or content of the question, and consciously and purposefully guiding the student to find out from the phenomenon of “change” Invariable ", Many math concepts are generalized and difficult for students to understand. Some of the knowledge contains implicit content. Students can not fully understand the connotation of mathematics based solely on the teacher’s scenario creation and knowledge.