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arXiv 1707.01979physics.ed-ph
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介绍性实验对学生理解测量不确定度的影响

Impact of an introductory lab on students' understanding of measurement uncertainty

Benjamin Pollard, Robert Hobbs, Jacob T. Stanley, Dimitri R. Dounas-Frazer, H. J. Lewandowski

摘要:

物理实验课是物理本科课程的重要组成部分。这些课程的学习目标通常包括解释测量和不确定性的能力。物理测量问卷(PMQ)是一个开放式问卷调查,从数据收集、数据分析和数据比较三个维度探讨学生对测量不确定性的理解。它将学生的推理分为点样范式和集合样范式,其中集合样范式更符合专家推理。在科罗拉多大学博尔德分校的课程转型工作的背景下,我们研究了500多名学生对PMQ的反应之前和之后的教学在预转换的课程。我们描述了学生的整体推理的变化,通过聚合PMQ的四个探针来衡量。特别是,我们在课程结束时观察到向集合式推理的巨大转变。

英文摘要:

Physics lab courses are an essential part of the physics undergraduate curriculum. Learning goals for these classes often include the ability to interpret measurements and uncertainties. The Physics Measurement Questionnaire (PMQ) is an established open-response survey that probes students' understanding of measurement uncertainty along three dimensions: data collection, data analysis, and data comparison. It classifies students' reasoning into point-like and set-like paradigms, with the set-like paradigm more aligned with expert reasoning. In the context of a course transformation effort at the University of Colorado Boulder, we examine over 500 student responses to the PMQ both before and after instruction in the pre-transformed course. We describe changes in students' overall reasoning, measured by aggregating four probes of the PMQ. In particular, we observe large shifts towards set-like reasoning by the end of the course.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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