• Open Access

Analogical scaffolding and the learning of abstract ideas in physics: Empirical studies

Noah S. Podolefsky and Noah D. Finkelstein
Phys. Rev. ST Phys. Educ. Res. 3, 020104 – Published 14 September 2007

Abstract

Previously, we proposed a model of student reasoning which combines the roles of representation, analogy, and layering of meaning—analogical scaffolding [Podolefsky and Finkelstein, Phys. Rev. ST Phys. Educ. Res. 3, 010109 (2007)]. The present empirical studies build on this model to examine its utility and demonstrate the vital intertwining of representation, analogy, and conceptual learning in physics. In two studies of student reasoning using analogy, we show that representations couple to students’ existing prior knowledge and also lead to the dynamic formation of new knowledge. Students presented with abstract, concrete, or blended (both abstract and concrete) representations produced markedly different response patterns. In the first study, using analogies to scaffold understanding of electromagnetic (EM) waves, students in the blend group were more likely to reason productively about EM waves than students in the abstract group by as much as a factor of 3 (73% vs 24% correct, p=0.002). In the second study, examining representation use within one domain (sound waves), the blend group was more likely to reason productively about sound waves than the abstract group by as much as a factor of 2 (48% vs 23% correct, p=0.002). Using the analogical scaffolding model we examine when and why students succeed and fail to use analogies and interpret representations appropriately.

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  • Received 12 March 2007

DOI:https://doi.org/10.1103/PhysRevSTPER.3.020104

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Authors & Affiliations

Noah S. Podolefsky and Noah D. Finkelstein

  • Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309, USA

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Issue

Vol. 3, Iss. 2 — July - December 2007

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