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在中学化学教学中，学生普遍反映：化学“一学就会，一听就懂，一多就乱，一长就忘。”针对这一现实，我以为，学好化学的关键是记忆，记忆的关键是克服“零、散、乱”。１．串联：化学知识之间存在着必然的联系，由此组成一定的知识结构。而课堂教学的实际又总是将知识拆分开
In chemistry teaching in middle schools, students generally reflect that chemistry “will learn as soon as it is learned, and as soon as one learns it, it will become chaotic and will be forgotten.” For this reality, I believe that the key to learning chemistry is memory and memory. The key is to overcome the “zero, scattered, chaotic.” 1. Tandem: There is an inevitable link between chemical knowledge, which forms a certain knowledge structure. The actual teaching of class is always split the knowledge