在初中化学课本中．基本概念几乎每节都有，而在化学教学实践中，学生由于基本概念不明确而影响化学成绩的提高。如何讲清化学基本概念，我是采用如下几种方法的。互．借助演示实验讲清苦本概念演示实验生动直观，它能使学生获得深刻的印象。课本中有很多基本概念都有相应的演 In junior school chemistry textbook. The basic concept has almost every section, and in chemistry teaching practice, students have an effect on the improvement of chemical performance due to the unclear basic concept. How to clarify the basic concepts of chemistry, I use the following methods. mutual. Demonstrating the concept of demonstration experiments with vivid demonstrations is vivid and intuitive. It can make students get a deep impression. There are many basic concepts in the textbook with corresponding performances