《酸碱盐》(初中《化学》第五章)是初中化学的重点教学内容之一。本章的重点是酸、碱、盐、氧化物的通性和它们的相应反应规律,以及有关化学方程式的书写,这又是学习初中化学的一个难点。我在这一章的教学中作了一些改革和探索。一、充分发挥实验的作用,培养学生观察能力和操作技能。长期以来,演示实验总是教师做、学生看。为了让学生更好的观察和操作,我把一部分演示实验交给学生做。首先指导“化学实验活动小组”的学生提前做,然后在课堂上让学生上讲台做演示实验。比如,教学硫酸、盐酸及其性质时,先让两 “Acid salt” (junior high school “Chemistry” Chapter V) is one of the key teaching content of junior high school chemistry. The focus of this chapter is on the generality of acids, bases, salts, and oxides and their corresponding reaction laws, as well as the writing of chemical equations, which is another difficulty in learning chemistry in junior high schools. I have made some reforms and explorations in the teaching of this chapter. First, give full play to the role of experiments to develop students' observation skills and operational skills. For a long time, demonstration experiments are always done by teachers and students. In order to allow students to better observe and operate, I give some demonstration experiments to students. First of all, the students who instruct the “Chemistry Experiment Activities Group” should do it in advance, and then let the students go to the podium to do demonstration experiments in class. For example, teaching sulfuric acid, hydrochloric acid and its nature, let two