arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1712.04063physics.ed-ph
收藏

描述实验教师自我报告的学习目标,以告知实验建模技能评估的发展

Characterizing lab instructors' self-reported learning goals to inform development of an experimental modeling skills assessment

Dimitri R. Dounas-Frazer, Laura Ríos, Benjamin Pollard, Jacob T. Stanley, H. J. Lewandowski

摘要:

开发,使用和完善实验系统模型的能力是本科物理实验室课程的国家认可的学习成果。然而,没有评估学生的基于模型的推理存在高年级实验室。这项研究是光学和电子实验室的建模评估发展的第一步。为了确定在许多机构环境中可能相关的测试目标,我们采访了35名实验室教师,了解他们将建模纳入课程学习目标和活动的方式。研究设计是由实验物理建模框架通知。该框架将建模概念化为由多个子任务组成:进行测量,构建系统模型,将数据与预测进行比较,提出差异原因,并对模型或设备进行修订。我们发现,每个建模子任务被多个教师确定为他们课程的重要学习成果。基于这些结果,我们认为,测试的目标应该包括探索学生的能力与大多数建模子任务,测试项目的设计,应该引起学生的理由,选择特定的建模路径。除了讨论这些和其他评估的影响,我们还确定了未来的研究领域,在光学和电子实验室建模的作用。

英文摘要:

The ability to develop, use, and refine models of experimental systems is a nationally recognized learning outcome for undergraduate physics lab courses. However, no assessments of students' model-based reasoning exist for upper-division labs. This study is the first step toward development of modeling assessments for optics and electronics labs. In order to identify test objectives that are likely relevant across many institutional contexts, we interviewed 35 lab instructors about the ways they incorporate modeling in their course learning goals and activities. The study design was informed by the Modeling Framework for Experimental Physics. This framework conceptualizes modeling as consisting of multiple subtasks: making measurements, constructing system models, comparing data to predictions, proposing causes for discrepancies, and enacting revisions to models or apparatus. We found that each modeling subtask was identified by multiple instructors as an important learning outcome for their course. Based on these results, we argue that test objectives should include probing students' competence with most modeling subtasks, and test items should be designed to elicit students' justifications for choosing particular modeling pathways. In addition to discussing these and other implications for assessment, we also identify future areas of research related to the role of modeling in optics and electronics labs.

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。

↑