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一、教师巧设问题情境为了创设有效的学习情境,教师要做生活的有心人,经常关注社会生活,特别是要从学生的视角来观察、思考周围的生活世界,并有意识地把生活中的事件与教学内容联系起来,既促进对知识的理解,又加深对生活的认识,这样才能建立知识与学习情境经常的、有机的联系。例如,在进行氯气的化学性质教学时,笔者从两则社会事件引入的。一则2005年“3·29”事故:据新华网报道,京沪高速公路淮安段上3月29日晚发生一起交通事故,导致液氯大面积泄漏。
First, teachers’ problem-solving situation In order to create an effective learning situation, teachers should be concerned about social life, often concerned about social life, especially from the student’s point of view, thinking about the living world around, and consciously to life events And teaching content, both to promote understanding of knowledge, but also deepen the understanding of life, so as to establish knowledge and learning situations often, organic links. For example, in the teaching of the chemistry of chlorine, I introduced it from two social events. A 2005 “3.29” accident: According to Xinhua reported that the Beijing-Shanghai Expressway Huaian section on the evening of March 29 with a traffic accident, resulting in large-scale liquid chlorine leak.