“身边的化学物质”作为初中化学课程的骨架,承载着化学基本概念和理论、化学计算和化学实验的相关知识。它以基本概念和基础理论为指导,以实验研究为手段,渗透化学计算的定量要求,在中考化学试卷中占相当重要的位置。然而,近几年的中考数据显示,与元素化合物知识有关的试题得分率并不高。笔者认为,这是由于学生在学习这部分知识时没有掌握学习的方法、思路,没有形成 As the skeleton of the junior high school chemistry course, the chemistry beside him carries the basic concepts of chemistry and related knowledge of theory, chemistry calculation and chemistry experiment. It is guided by the basic concepts and basic theory, with experimental research as a means to infiltrate the quantitative requirements of chemical calculation, and occupy a rather important position in the examination paper of senior high school entrance examination. However, the senior high school entrance examination data in recent years show that the score of test questions related to the knowledge of elemental compounds is not high. The author believes that this is due to students in learning this part of the knowledge did not master the learning methods, ideas, did not form