Expert and Novice Use of Multiple Representations During Physics Problem Solving
Expert and Novice Use of Multiple Representations During Physics Problem Solving
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专家和新手在解决物理问题时使用多重表示
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
N. Finkelstein
中科院分区：
文献类型：
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作者：
P. Kohl;N. Finkelstein
人们普遍认为，学生在解决某些物理问题时应该使用多种表示。在这项研究中，我们采访了专家和新手物理学家，因为他们解决了两种类型的多重表征问题：一种是为他们提供了多重表征，另一种是学生必须构建自己的表征。我们详细分析了主体使用的表征类型以及它们使用的顺序和方式。有些令人惊讶的是，专家和新手都大量使用多重表示。出现了一些差异：专家对多个表示的使用在时间上更密集，而新手倾向于更频繁地在可用表示之间移动。此外，我们发现单独检查多重表征的使用不足以充分表征一个解决问题的情节；还必须考虑使用可用表示形式背后的目的。
It is generally believed that students should use multiple representations in solving certain physics problems. In this study, we interview expert and novice physicists as they solve two types of multiple representations problems: those in which multiple representations are provided for them, and those in which the students must construct their own representations. We analyze in detail the types of representations subjects use and the order and manner in which they are used. Somewhat surprisingly, both experts and novices make significant use of multiple representations. Some differences emerge: Expert use of multiple representations is more dense in time, and novices tend to move between the available representations more often. In addition, we find that an examination of multiple representation use alone is inadequate to fully characterize a problem‐solving episode; one must also consider the purpose behind the use of the available representations.