演示实验是教师进行表演,学生观察,教学双方协调活动的实验.它能提供鲜明、准确、生动的感性材料,帮助学生形成概念原理,并能帮助学生学习正确规范化的操作技术和方法,从而使他们受到良好的实验习惯的教育,还可培养学生的观察能力、分析能力和推理能力.因此,做好演示实验是提高化学教学质量,发展 Demonstration experiment is an experiment of teachers performing performances, student observations, and teaching activities coordinated by both parties. It can provide vivid, accurate and vivid sensuous materials, help students form the concept principle, and help students learn the correct and standardized operating techniques and methods, so that They are educated on good experimental habits and can develop students’ observation, analysis, and reasoning skills. Therefore, doing a good demonstration experiment is to improve the quality of chemistry education and develop