一、概念生成——不能忽略背景化学概念的生成远不是告诉学生一个概念本身那样简单,为什么要建立一个概念,这个化学概念在化学知识的体系中起什么样的作用?对于这些问题的思考可以让我们的化学概念教学有一个丰富的背景,而这正是目前的化学教学所忽略的.化学概念在学生的认知基础上应当如何生成?对于这个问题的思考是“以生为本”理念的具体体现.在实际教学中只要考虑了概念的生成背景与具体的生成途径,我们才能说这样的概 First, the concept of generation - can not be ignored Background The concept of chemical generation is far from telling students a concept as simple as that, why establish a concept, the chemical concept of chemical knowledge in the system what kind of role? Thinking of these issues can Let us have a rich background in the teaching of the concept of chemistry, which is neglected in the current chemistry teaching.Chemistry concept in the student’s cognition should be based on how to generate? Thinking about this issue is "The concrete manifestation of the concept.In the actual teaching, as long as we consider the generation background of the concept and the concrete way of generation, we can say that