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透镜成像规律是高中几何光学内容中的核心,教学中通常是在黑板上用作图法总结其成像规律的.演示实验又因对毛玻璃上所生成的像的清晰程度的观察有误差,因而不能直接从实验验据得出成像规律.我自制的《可拆式透镜成像规律示教仪》,既解决了因实验误差不能直接从实验数据找出透镜成像规律的弊病,又改变了纸上谈兵的枯燥教学方法.给数学带来了极大的方便,收到良好效果。现将制作方法介绍如下:(图中数据是制作的尺寸,仅作参考)
Lens imaging law is the core of high school geometry and optics content, teaching is usually used as a diagram to summarize the imaging law on the blackboard. Demonstration experiment is due to the error of the observation of the clarity of the image generated on the frosted glass, and therefore can not Obtaining the imaging rule directly from the experimental evidence. My self-made “Disconnectable Lens Imaging Law Teaching Instrument” not only solved the shortcomings of the lens imaging law that could not be directly found from the experimental data due to experimental errors, but also changed the boring on paper. Teaching methods bring great convenience to mathematics and receive good results. The production method is described as follows: (The data in the figure is the size of the production, only for reference)