Investigation of student understanding of the concept of velocity in one dimension
Investigation of student understanding of the concept of velocity in one dimension
复制标题
学生对一维速度概念理解的调查
DOI：
10.1119/1.12298
复制
发表时间：
1980
影响因子：
0.9
通讯作者：
L. McDermott
中科院分区：
文献类型：
--
作者：
David E. Trowbridge;L. McDermott
本文描述了一个系统的调查的理解速度的概念在学生就读于各种各样的物理入门课程在华盛顿大学。评价运动学概念理解的标准是成功地将其应用于解释真实的物体的简单运动的能力。主要的数据来源是个人示范访谈，学生被问到关于他们观察到的简单运动的具体问题。结果报告的成功，不同的学生群体在两个同时运动的速度比较。看来，几乎每一个未能作出适当的比较可以归因于使用的位置标准，以确定相对速度。简要讨论了教学的一些影响。
This paper describes a systematic investigation of the understanding of the concept of velocity among students enrolled in a wide variety of introductory physics courses at the University of Washington. The criterion selected for assessing understanding of a kinematical concept is the ability to apply it successfully in interpreting simple motions of real objects. The primary data source has been the individual demonstration interview in which students are asked specific questions about simple motions they observe. Results are reported for the success of different student populations in comparing velocities for two simultaneous motions. It appears that virtually every failure to make a proper comparison can be attributed to use of a position criterion to determine relative velocity. Some implications for instruction are briefly discussed.