“比较法”在化学学习中的运用贵池中学汪中海在化学学习中，恰当地运用“比较法”，能够激发学生的学习兴趣并有利于学生弄清知识的内涵和外延，区别和联系，从而揭示本质，牢固掌握。一、比较易混淆的知识点，认识”质”的区别。例如，教材中对甲烷和白磷的分子结构都描... The Application of “Comparative Law” in Chemistry Learning Guizhong Middle School Wang Zhonghai In chemistry learning, the proper use of the “Comparative Law” can stimulate students’ interest in learning and help students understand the connotation, extension, difference and connection of knowledge. In order to reveal the essence, it is firmly grasped. First, compare the confusing knowledge points and understand the difference of “quality”. For example, the molecular structure of methane and white phosphorus is described in the textbook...