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笔者有幸观摩了一次青年教师教学比武活动,其内容是人教版第四章第五节《观察水的沸腾》,本节教材设有学生实验——观察水的沸腾,该实验耗时不长,但教学比武中暴露出的问题耐人寻味.物理是一门以实验为基础的学科,物理教学大纲强调指出;“加强演示和学生实验,培养学生的实验能力.”水的沸腾现象几乎每天可见,但学生未对其进行仔细观察,只知道有这么回事,对沸腾过程的规律不甚清楚.教材要求充分体现学生的主体作用,让学生自己动手,自己
The author had the privilege of observing a young teacher’s teaching contest, the content of which is the fourth chapter of the People’s Education Edition, “seeing the boiling of water”. This section of the textbook has a student experiment to observe the boiling of water. The experiment took a long time. , But the problems exposed in the teaching contest are thought-provoking. Physics is an experiment-based discipline. The physics syllabus emphasizes; “Strengthening demonstrations and student experiments to develop students’ experimental abilities.” Water boiling almost daily Visible, but the students did not observe it carefully, only know that there is such a thing, the laws of the boiling process is not clear. The textbooks require students to fully reflect the main role, so that students themselves do it themselves