三、实验教学促进学生理解和巩固化学知识的心理分析理解就是人们逐步认识事物的联系，直至认识其本质和规律的一种思维活动。因此，理解的核心心理因素就是思维。获得丰富的、典型的、正确的感性材料更有利于思维，从而理解事物的本质和规律。理解分为直接理解和间接理解。直 Third, experimental teaching to promote students to understand and consolidate the psychological analysis of chemical knowledge Understanding is that people gradually understand the connection between things, until the understanding of its nature and a kind of thinking activities. Therefore, the core psychological factor in understanding is thinking. Acquiring rich, typical, and correct sensible materials is more conducive to thinking and thus understanding the nature and laws of things. Understanding is divided into direct understanding and indirect understanding. straight