义务教育阶段的化学课程是化学教育的启蒙阶段,化学教学应注重从学生已有的经验出发,让学生在熟悉的生活情境中学习新的知识和技能,感受化学的重要性,提高对化学的学习兴趣;倡导学生主动参与、乐于探究、勤于动手,体验学习过程;培养学生搜集和处理信息的能力、获取新知识的能力、分析和解决问题的能力、交流与合作的能力以及终身学习的愿望和能力。要实现这些,归根结底是课堂教学效率问题,实现课堂教学的有效性。那么,如何提高化学课堂教学效率呢?通过多年来课堂教学实践的探索和课题的研究, Chemistry course in compulsory education phase is the enlightenment phase of chemistry education. Chemistry teaching should focus on the existing experience of students, let students learn new knowledge and skills in familiar life situations, feel the importance of chemistry, improve chemistry Interest in learning; Advocacy of students to actively participate in, willing to explore, diligent, experience the learning process; Students develop the ability to collect and process information, access to new knowledge, ability to analyze and solve problems, exchange and cooperation and lifelong learning Desire and ability. To achieve these, in the final analysis is the efficiency of classroom teaching to achieve the effectiveness of classroom teaching. So, how to improve the efficiency of chemistry classroom teaching? Through years of classroom teaching practice and research topics,