化学概念是化学知识的重要组成部分 ,是学好其他化学知识的基础。按大纲要求 ,这些概念大多数要求达到理解和掌握的程度 ,是教学的重点 ,有些还属于难点 ,所以概念教学就成为化学教学的重要内容之一。而中学生在化学概念的学习中 ,常存在概念记忆不准、不会应用等问题。主要原? The chemical concept is an important part of chemical knowledge, and it is the basis for learning other chemical knowledge. According to the outline requirements, most of these concepts require understanding and mastery. They are the focus of teaching and some are still difficult. Therefore, concept teaching becomes one of the most important aspects of chemistry teaching. Middle school students often have problems such as inaccurate concept memory and no application in the study of chemistry concepts. The main original?