高中生电磁学迷思概念的测定及差异性分析

Measure ment and Difference Analysis on Misconceptions in Electromagnetiscs among Senior High School Students

以高考电磁学中的重点和难点为基础开发了一套信度和难度都适中的迷思概念诊断试题.利用该试题对北京市某重点中学高二年级两个班的学生实施纸笔测试,经统计分析诊断出所学电磁学的迷思概念.分析表明,高中电磁学迷思概念主要分布在静电平衡和等势面,磁场对电荷的作用,感应电动势等部分.

The electromagnetism of the high school physics is abstract and difficult to understand,it makes the students’ learning very tiresome.Find and solving of the misconceptions of the electromagnetic conceptions are helpful to enhance the students’ understanding.Hence,we developed a diagnostic test of the electromagnetic conceptions for the high school students based on the key stone and difficulties of the college entrance examination.Two classes’ students of the key middle school of Beijing using the developed diagnostic test were carried out.It indicates that misconceptions of the electromagnetism for high school concentrate on the electrostatic equilibrium and equipotential surface,charges in the magnetic field,and the induced electromotive force.