化学概念是用简练的语言高度概括的定义、原理、反应规律等,其中每一个字、词、每一句话、甚至每一个标点符号都是经过专家认真推敲,赋予了特定意义的,使得概念具有完整性和科学性。初中学生的阅读和理解能力都比较差,因此,教师在教学过程中讲清概念、引导学生理解概念非常重要。首先,有些概念可适可而止,水到渠成。初中的最后学年才开 The concept of chemistry is a highly generalized definition, principle, and reaction rule in concise language. Each word, word, sentence, and even punctuation mark is carefully considered by experts and given special meaning, making the concept have Integrity and science. Junior middle school students have poor reading and comprehension skills. Therefore, it is very important for teachers to clarify concepts and guide students to understand concepts in the teaching process. First of all, there are concepts that can be justified and will come to fruition. The last school year of junior middle school was opened