同类项及合并同类项是苏科版七年级上册第三章“用字母表示数”里的一项重要内容。合并同类项既是本章教学重点又是难点,是初中生数学的重要知识点。学好合并同类项这一节有利于学生对整式的加减的学习,同时也可为学习解方程及解方程组打下基础,因为合并同类项是解方程的基础内容之一。那么,学习合并同类项应该注意哪些问题,又能利用合并同类项解决什么方面的问题呢?一、什么是同类项根据教材中的定义:“所含字母相同,并且相同字母的 Similar items and the merger of similar items is Su Ke version of the seventh grade on the third chapter ”use the number of letters “ in an important part. Merger of similar items is not only the focus of this chapter teaching is difficult, is an important knowledge of junior high school mathematics. Learning to Merge Equivalent Terms This section facilitates students’ learning of integral additions and subtractions, as well as laying the groundwork for learning to solve equations and solving equations, as combining similar items is one of the foundations of solving equations. So, learning the merits of similar items should pay attention to what the problem, but also the use of the merger of similar items to solve any problem? First, what is the same terms According to the textbook definition: ”contains the same letters, and the same letter