初中学生在“化学用语、溶液计算、酸碱盐相互反应规律”3个知识点的学习过程中极易出现分化。找出学生的分化原因,避免学生的分化,是摆在我们每个化学教师面前的重要课题。初中化学教材是以物质结构初步知识为重要理论,由感性到理性,由浅入深地进行编排。由此,教学中以部颁大纲为纲、以课本和评价手册为依据,以物质结构为主线,以实验为基础、以元素化合物知识为核心,加强化学用语教学,加强溶液计算训练,系统 Junior high school students are prone to differentiation in the course of learning “chemical phrases, solution calculations, and interactions between acid and alkali salts”. Finding out the reasons for students’ differentiation and avoiding the student’s differentiation is an important issue facing each of our chemistry teachers. The junior middle school chemistry textbook is based on the preliminary knowledge of the material structure as an important theory, from perceptual to rational, from shallow to deep. Therefore, teaching is based on the ministry outline, based on textbooks and evaluation manuals, with the material structure as the main line, the experiment as the basis, and the knowledge of elemental compounds as the core, to strengthen the teaching of chemical terms, and strengthen the solution calculation training.