化学是一门以实验为基础的学科,实验教学也是化学教学中的重要组成部分。化学实验是学生获得较多感性认识的重要途径,可以帮助学生理解化学概念和原理,形成科学的思想和观念~([1]);为学生提供实践的机会,培养学生的观察能力、思维能力,提高实验的动手能力;激发学生学习化学的兴趣,有利于学生形成自己的知识体系。素质教育背景下,教师在化学实验教学过程中,要引导学生发挥其主观能动性,通过大量的实验来学习 Chemistry is an experiment-based discipline, and experimental teaching is also an important part of chemistry teaching. Chemistry experiments are important ways for students to acquire more perceptual knowledge, which can help students understand the concepts and principles of chemistry and form scientific ideas and concepts. (1) Provide students with practical opportunities to develop students’ observation ability and thinking ability , Improve the experimental ability; stimulate students interest in learning chemistry, help students form their own knowledge system. In the context of quality education, teachers in the chemical experiment teaching process, to guide students to play their subjective initiative, through a large number of experiments to learn