等比数列是数学知识板块中很重要的一个内容构成,很多中职学生对这部分内容的学习都表现出一定程度的理解障碍,因此,如何化解学生的认知障碍,是教师首先要考虑的问题。等比数列这部分内容抽象程度较高,对于学生思维的灵活性有一定要求。教师在具体的教学实践中可以从学生已有的基础知识出发,多借助等差数列相关内容的引导,逐渐推演出等比数列的知识学习,以类比的方式化解学生认知上的障碍。中职学生不具备太扎实的 The geometric progression is a very important part of mathematics knowledge. Many secondary vocational students show a certain degree of understanding obstacle to the learning of this part of the content. Therefore, how to resolve students’ cognitive impairment is the first thing to be considered by teachers problem. This part of the geometric progression has a high level of abstraction and requires some flexibility in student thinking. Teachers in the specific teaching practice can start from the students’ existing basic knowledge, and more with the help of the related content of the arithmetic progression, gradually deduce the knowledge-based learning of the series of numbers and resolve the cognitive obstacles of students in an analogy way. Secondary vocational students do not have too solid