基于利用牛顿环实验数据修正的教学讨论

Teaching Discussion of Data Correction Based on the Newton Ring Experiment

目前牛顿环实验教学中存在着学生理论理解不深、公式修正不重视及误差分析潦草的普遍性问题,针对上述问题,探讨运用启发式教学,将实验操作与公式推导紧密衔接,使学生在测量过程中自行发现误差,在教师指导下进行全面的数据处理获得修正方案的教学过程。整个过程基于对实验数据的怀疑和修正,思路更清晰,使学生参与度大大提高,深刻地理解逐差法和归一化处理的意义,加深对误差因素、测量修正和数据处理意义的领悟。

It focuses on the common problems in current experimental teaching of Newton Ring,such as students’lack of theoretical understanding,neglect of formula correction and sloppy error analysis.Heuristic teaching process is discussed to closely link the experimental operation with formula derivation.Students could find errors in the measurement process by themselves.Under the guidance of a teacher,a comprehensive data handling is conducted to obtain a revised scheme for error correction.This clear teaching process is based on the doubt and correction of experimental data,so that students’participation is greatly improved.The significance of successive differential method and normalization processing could be deeply understood,while the comprehension of error factors,measurement correction and data processing is greatly deepened.