“有理数”一章是初中数学的基础。这一章的概念多，对学生来说，难度大，不易理解、掌握。因此，本章的概念在整个一章的教学中占有十分重要的地位。下面就如何搞好本章的概念教学谈谈自己的拙见。 一、做好概念的衔接与过渡 “有理数”一章开始讲正、负数的概念。通过温度、 The chapter “Rational Numbers” is the basis of junior high school mathematics. This chapter has many concepts and is difficult for students to understand and master. Therefore, the concept of this chapter occupies a very important position in the teaching of the entire chapter. Let’s talk about our own opinions on how to do a good job of the concept teaching in this chapter. First, make the concept of convergence and transition The “rational number” chapter begins to talk about the concept of positive and negative numbers. Through temperature,