变式教学是指教师有目的、有计划的不断更换命题中的非本质因素,变化问题中的条件或结论,转化问题的内容和形式,配置实际应用各种环境的教学方式,但应保留对象中的本质因素,从而使学生掌握数学对象的本质属性。对初中数学来说,课本上的内容相对比较简单,是最简层次的知识点,有好多学生有这样的疑惑,为什么课本上的习题我都会做了,一到考试起来我就不会了呢,为什么老师只是稍微变换一下题目的条 Variant teaching refers to teachers’ purposeful and planned non-essential elements in continually changing propositions, conditions or conclusions in changing questions, transforming the content and form of the problems, and configuring practical teaching methods in various environments, but the object should be retained In essence, so that students master the essential attributes of mathematical objects. For junior high school mathematics, textbooks on the content is relatively simple, is the simplest level of knowledge, there are many students have such doubts, why the exercises on textbooks I will do, as soon as the exam I will not , Why the teacher is only slightly change the subject of the article