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掌握好化学基本概念是学好化学知识的基础，它如同要学好语文首先要学好字词一样重要。中学生在化学概念学习中，常存在下面几个问题：（一）概念不准确；（二）不会应用；（三）不注意概念间的内在联系；（四）不注意概念的内涵和外延。针对这些问题，我在教学工作中着重...
Grasping the basic concept of chemistry is the foundation of learning chemistry knowledge. It is as important as learning words well. Middle school students often have the following problems in the study of chemical concepts: (1) Inaccurate concepts; (2) Will not be applied; (3) Do not pay attention to the internal relations between concepts; (4) Pay no attention to the connotation and extension of concepts. In response to these problems, I focused on teaching...