在物理、化学、生物、地理和自然常识等学科的教学中,实验是一种重要的方法.概念反映物质物理属性和化学变化的一般本质属性,在化学实验的教学中培养学生形成化学概念,感知是第一要素.概念内容的具体化又是学生形成化学概念第一个起点.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. Experiments are an important method in the teaching of physics, chemistry, biology, geography, and natural common sense. The concept reflects the physical properties of matter and the general nature of chemical changes. Students are trained to form chemistry concepts in the teaching of chemistry experiments. Perception is the first element. The concreteness of the concept content is the first starting point for students to form the concept of chemistry. Teachers must rely on experimental teaching closely to guide students to obtain perceptual knowledge from intuitive experimental phenomena and cultivate students to form the concept of chemistry.