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比热容是初中物理中涉及到较多因素的一个重要概念,也是教学的难点。我们在教学中设计了四步法,即,创设情境,提出问题;实验探究,初步感知;类比分析,建立概念;拓展提升,迁移应用,以此敲定比热容的教学。一、创设情境,提出问题师展示问题:今天早晨起床后,我想吃完方便面后再去学校,暖瓶中又无热水,但时间已经不多
Specific heat capacity is an important concept involved in junior middle school physics and also a difficult point in teaching. We have designed a four-step method in teaching, that is, to create the situation, ask questions; experimental exploration, the initial perception; analogy analysis, the establishment of concepts; expand promotion, migration applications, in order to finalize the teaching of specific heat capacity. First, create the situation, put forward the problem division Show problems: wake up this morning, I want to go to school after eating instant noodles, there is no hot water bottle, but time is running out