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人教版新旧教材中均介绍了牛顿环实验,要求学生回答相关问题,且新教材要求略高.虽然大学课本上对牛顿环现象及成因有详细、定量的推导,但对大多数学生来讲,要考虑数学近似,且有较多的数学推导,教学要求偏高.所以很多学生对该题结论只是机械记忆,学习效果较差.如何在不提高教学要求的基础上突破学生所遇到的一些难点呢?笔者进行了一些尝试,与同仁交流.
New and old textbooks of the People’s Education Press both introduced the Newton’s ring experiment and asked students to answer related questions. The new textbooks require a slightly higher level. Although university textbooks have a detailed and quantitative derivation of Newton’s ring phenomenon and causes, most students We must consider the mathematical approximation, and there are more mathematical derivation and higher teaching requirements. Therefore, many students only mechanically memorize the conclusions of the questions, and the learning effect is poor. How to break through the problems encountered by students without improving the teaching requirements? What are the difficulties? The author made some attempts to communicate with colleagues.