Atwood’s Machine and Electromagnetic Induction: A Real Quantitative Experiment to Analyze Students’ Ways of Reasoning
Giacomo Bozzo 1, Marisa Michelini 2, Assunta Bonanno 3, Alberto Stefanel 2 *
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1 Secondary School “G.B. Quadri”, Vicenza, ITALY
2 Department of Mathematics, Computer Science and Physics, University of Udine, Udine, ITALY
3 Department of Biology, Ecology and Earth Sciences, University of Calabria, Cosenza, ITALY
* Corresponding Author

Abstract

We report a research-based proposal on electromagnetic induction within the theoretical framework of the Model of Educational Reconstruction. The proposal is based on a sequence of inquiry-based experimental activities centered on hands-on materials and Real-Time quantitative experiments, through which students explore the phenomenology of electromagnetic induction. The sequence was planned to address Faraday-Neumann-Lenz law analyzing the involved physics quantities and constructing quantitative relationships between them. Our hypothesis was based on the idea that phenomenological explorations performed through online sensors promote a functional understanding of electromagnetic induction and help students to face the conceptual knots highlighted by international literature about these phenomena.
The educational sequence was proposed to a sample of 87 high school students with the aim of analyzing the evolution of the educational processes employing a set of inquiry-based tutorials. The qualitative analysis of students’ answers demonstrates that students increased their knowledges in the analysis of electromagnetic induction phenomena recognizing the fundamental role of time-variation of the magnetic field flux in the Faraday-Neumann-Lenz law.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

https://doi.org/10.29333/ejmste/11567

EURASIA J Math Sci Tech Ed, 2022 - Volume 18 Issue 2, Article No: em2077

Publication date: 17 Jan 2022

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Article Downloads: 309

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