在教学中如何将学生从单一的记忆知识向理解知识转变,从依赖向独立转变,从被动向主动的转变,这需要从传统的教学中摆脱出来。因为传统的化学教学比较重视教材的知识结构和逻辑结构,而不太重视头脑中的认知结构;而事实上学生头脑中的认知结构与教材所呈现的知识结构是不同的。有个别教师认为只要课堂上讲懂,下来“跳入题海畅 How to change students from single knowledge of memory to understanding of knowledge, from dependence to independence and from passive to active in teaching needs to be removed from the traditional teaching. Because the traditional chemistry teaching pays more attention to the knowledge structure and logical structure of the textbook, and does not pay much attention to the cognitive structure in the mind. In fact, the cognitive structure in the student’s mind is different from the knowledge structure presented in the textbook. Some teachers think that as long as the class to understand, down "jump into the sea