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一、注重以情境为起点情境是知识生根发芽的土壤,新课教学不可缺失了情境的设置,对于复习课教学也是如此,那么高三复习如何设置情景呢?1.实验情境的设置实验是化学知识形成的基础,不仅仅适用于新课教学,对于复习课教学一样适用.例如,“铁及其化合物”复习,我在课堂上就和学生进行了实验探究:“提供一种浅绿色的溶液,接着向其中滴入一种无色液体,引导学生观察,没有任何现象发生,接着又滴加了另外一种黄绿色
First, pay attention to the situation as a starting point Situation is the soil of knowledge rooted germination, the new lesson teaching can not be missing the setting of the situation, for the review of teaching as well, then how to set the scene review senior high school it? 1 experimental setup of the experiment is chemical knowledge The basis for its formation is not only applicable to the teaching of new courses but also to the teaching of refresher courses. For example, in the review of ”Iron and its compounds,“ I conducted an experiment with students in the classroom: ”To provide a light green Solution, followed by dropping a colorless liquid, to guide students to observe, without any phenomenon, followed by dropping another yellow-green