化学基本概念是整个中学化学知识的基础 ,加强基本概念教学 ,能使学生对化学所研究的物质及其变化的认识不致停留在低级的感性阶段 ,能使学生更深刻地认识化学所研究的物质及其变化规律。掌握好化学概念是学生学好基础理论、定律、公式的前提 ,也是发展学生智力 ,特别是逻辑思 The basic concept of chemistry is the basis of chemistry knowledge throughout the middle school. Strengthening the basic concept teaching can enable students to understand the substances and their changes in the chemistry research not to remain in the low-level perceptual stage, enabling students to gain a deeper understanding of the substances studied by the chemical industry. And its changing law. Grasping the concept of chemistry is a prerequisite for students to learn basic theory, laws, and formulas. It is also a development of students’ intelligence, especially logical thinking.