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https://doi.org/10.3938/NPSM.68.1127
Analysis of the External Representation Transformation Activities of High School Students - Unit on Work and Energy
New Phys.: Sae Mulli 2018; 68: 1127~1139
Published online October 31, 2018;  https://doi.org/10.3938/NPSM.68.1127
© 2018 New Physics: Sae Mulli.

Sehee CHOI, Sung Hyun YOON*

Department of Physics Education, Korea National University of Education, Cheongju 28173, Korea
Correspondence to: shyoon@knue.ac.kr
Received April 13, 2018; Revised September 20, 2018; Accepted September 20, 2018.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In this research, we devised a set of activity sheets for external representations to help students understand the concept of work and energy, and we conducted a study to 67 high school students to investigate the characteristics of external representation transformations. Research has shown that students are not well aware of the importance of displaying data labels on graphs and drawing vector arrows in a picture. Furthermore, they can neither accurately state the terms or principles of the key concept nor accurately express the formula for the work-energy theorem. The performance levels of students' external representation transformation activities differed according to the difficulties of the concepts being learned. Based on the results of this study, the implications for external representation transformation activities in the learning of work and energy are suggested.
PACS numbers: 01.40.ek, 01.40.Fk
Keywords: External representation, Work and energy, Transformation activity


October 2018, 68 (10)
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