初中化学教学的任务,概括地说是传授知识、培养能力。但主要任务是培养学生自己获取知识的能力,即培养学生独立认识、分析和解决化学问题的能力。培养学生能力的途径是多方面的,其中课堂教学是最主要的。上述任务,我是通过指导预习、展开讨论、点拨小结、巩固练习“四步法”课堂教学完成的。现将几年实践的体会简述如下: The task of junior high school chemistry teaching, in general, is to impart knowledge and develop abilities. But the main task is to develop students 'abilities to acquire knowledge, that is, to cultivate students' ability to independently understand, analyze and solve chemical problems. There are many ways to develop students' abilities, of which classroom teaching is the most important. The above tasks, I was through the guidance preview, discussion, call summary, to consolidate the practice “four-step method” classroom teaching completed. Now the experience of several years of practice is summarized as follows: