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一、首先做好教学讲授的配套工作课堂演示实验是配合讲授、课堂讨论的重要环节,好的实验能使课堂气氛生动活泼,学生学习兴趣增强,注意力集中。这就要求我们教师要特别重视常规演示实验,在每次的演示中保证做到:事先做好充分的准备;实验要规范,保证让全班同学看清、看懂;对实验中可能出现的问题和学生感兴趣的问题一一列写在小黑板或纸上,演示完后让学生解答,然后共同分析讨论得出实验结论,并将讨论结果写在课本演示实验旁,同时提出1～2道课后实验习题。这样做的目的是使同学们注意观察演示实验,发挥教师
First, do a good job teaching and supporting work classroom demonstration experiment is to cooperate with the teaching, an important part of the classroom discussion, a good experiment can make the classroom atmosphere lively, students learn to increase interest, focus. This requires that our teachers should pay special attention to routine demonstration experiments, in each demonstration to ensure that: make adequate preparations in advance; experiments should be standardized to ensure that the class to see and understand; on the experiment may occur Questions and questions of interest to students are listed one by one on a small blackboard or paper. After the presentation, students are asked to answer the questions. The results of the analysis are then put together in the textbook demonstration experiment. At the same time, 1 to 2 After-class experimental exercises. The purpose of doing so is to make students pay attention to observe demonstration experiments, to play teachers