类比是根据两个对象或两类事物的一些属性相同或相似,猜想另一些属性也相同或相似的思维方法.作为一种重要的数学思想,类比可以说是无处不在,在数学学习中运用类比思想学习与解题极为重要,它可以促进学生对数学思想的发现与领悟,还可以帮助学生对不同层面的教学内容进行理解与记忆,在获得命题的推广与延伸的同时,能够诱导学生解题思路的发散与变迁. Analogy is based on two objects or two types of things the same or similar attributes, guess the other attributes are the same or similar way of thinking.As an important mathematical thought, analogy can be said to be ubiquitous in mathematics learning It is very important to study and solve analogous ideas. It can promote students’ discovery and comprehension of mathematical ideas. It can also help students to understand and remember the teaching contents at different levels. While getting the promotion and extension of propositions, Divergence and change of thinking.