学生形成化学概念,感知是第一要素。概念内容的具体化是学生形成化学概念的第一个起点。教师必须紧紧依托实验教学,引导学生从直观的实验现象中,获得感性认识,培养学生形成化学概念。下面,笔者以实验教学为例,就培养学生形成基本理论、物质特性、化学变化规律三类概念,谈谈个人的认识。一、提供具有说服力的实验,培养学生形成化学基本理论的有关概念化学基本理论的有关概念,比较抽象,学生较难理解。通过实验教学,提供具有说服力的实验,使学生获得一定的、有说服力的感性知识,对理解抽象的化学基本理论概念较为有利。例 Students form a chemical concept, perception is the first element. The concretization of conceptual content is the first starting point for students to develop a chemical concept. Teachers must closely rely on experimental teaching, guide students from the intuitive experimental phenomena, access to perceptual knowledge, training students to form a chemical concept. The following, the author takes experimental teaching as an example, to cultivate students to form three kinds of concepts of basic theory, material characteristics and chemical variation, talk about personal understanding. First, to provide persuasive experiments to develop students to form the basic theory of chemistry, the concept of basic concepts related to the concept of chemistry, more abstract, students more difficult to understand. Through experimental teaching, providing persuasive experiments to enable students to acquire certain and persuasive perceptual knowledge is more beneficial for understanding the abstract concepts of chemical basic theory. example