假说是化学研究的一种重要方法。在化学发展历史上,有很多理论最初都是以假说的形式提出来的。如现在中学教材中的阿佛加德罗定律、门捷列夫元素周期律、苯环结构等。在教学中,教师应根据教材内容的特点,尽可能以假说为中心,让学生了解什么是假说及假说在科学发展中的作用,并对学生进行假说方法的训练,培养学生的科学思维方法。一、首先让学生了解什么是假说在科学观察或实验中,当旧理论解释不了新事实或解释不尽完美的时候,人们往往要根据已有的科学知识和实验事实,经过归纳和演绎、分析和综合、抽象和类比的思维活动,对所研究的对象提出一 Hypothesis is an important method of chemical research. In the history of chemical development, many theories were initially proposed in the form of hypotheses. Such as now in secondary school textbooks of Avogadro's Law, Mendeleev's periodic law, benzene ring structure. In teaching, teachers should, based on the characteristics of the textbook content, try their best to focus on the hypothesis so that students can understand what hypothesis and hypotheses play in scientific development, and train students in hypothetical methods to cultivate students' scientific thinking methods. First, let the students know what is the hypothesis In scientific observation or experiment, when the old theory can not explain new facts or interpretation is not perfect, people tend to be based on existing scientific knowledge and experimental facts, through induction and deduction, analysis And comprehensive, abstract and analogy of thinking activities, the object of study proposed one