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一、分组实验设计改进实例人教版物理教材八年级探究凸透镜成像规律的分组实验采用的是J2507型光具座。在实验中,不仅烛液容易流到光具座的滑轨和桌面上,而且学生对物距、像距的读数感到困难,易对学生探究实验规律造成影响。为此,我对实验室光具座进行了改进。
First, the group experimental design to improve the example of People’s Education Edition textbook eighth grade to explore the law of imaging lens grouping experiment is used J2507-type optical bench. In the experiment, not only the candle liquid easily flows to the slide rail and the tabletop of the optical bench, but also the students feel difficult to read the object distance and distance, which is easy to influence students to explore the experiment rules. To this end, I improved the laboratory optical bench.