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化学基本概念是中学化学教学的一项重要任务,具有重要意义。新编中学化学大纲中指出:“使学生准确地深刻地理解基本概念,对于学习化学是十分重要的。在教学中要尽可能通过观察实验或对物质变化现象的分析,经过抽象、概括形成概念。”在化学教学过程中,形成学生正确的化学概念,对于完成化学教学的教育和教养任务具有极大的作用。正确的概念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.使他们更完全地更深刻地认识化学所研究的具体物质及其变化规律。对概念的理解,不仅是学生学好基础理论、定律、公式的前提和基础,也是发展学
The basic concept of chemistry is an important task of chemistry teaching in middle school, which is of great significance. The new high school chemistry outline states: “To enable students to understand the basic concepts accurately and profoundly is very important for learning chemistry.At the same time, we should abstract and summarize concepts by observing experiments or analyzing changes of matter as much as possible in teaching ”In the process of chemistry teaching, forming the correct chemical concept of students plays a very important role in fulfilling the tasks of education and education in chemistry teaching. The correct concept enables students to stay informed about the substances studied and their changes in chemistry to a lesser extent in the perceptual phase, enabling them to have a fuller understanding of the specific substances studied and their changing patterns. Understanding of concepts is not only a prerequisite and foundation for students to learn basic theories, laws and formulas,