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http://dx.doi.org/10.14697/jkase.2020.40.6.583

Teachers' Perceptions of Explanatory Method Based-on Process Viewpoint for Floating and Sinking Phenomena  

Kim, Sungki (Korea Institute for Curriculum and Evaluation)
Paik, Seoung-Hye (Korea National University of Education)
Publication Information
Journal of The Korean Association For Science Education / v.40, no.6, 2020 , pp. 583-594 More about this Journal
Abstract
In this study, the existing concept of density has a limitation in providing the cause of phenomena, and the concept of buoyancy poses a problem because it has many misconceptions and requires an overly difficult concept to understand quantitative calculation, so we suggest an explaining method as process viewpoint introducing the principle of lever. The new method of explanation has been proposed using the lever as visual tool to reveal the gravity as the fundamental principle and process viewpoint. As a result, teachers stayed on many alternative concepts and less than half of the teachers were aware that density was related to gravity. In addition, they recognized it as matter viewpoints, but there is a meaningful conceptual change after intervention(p<.000). Also, they evaluated that the new method is better able to recognize the principle and process viewpoint than the existing description method. Through this, we can confirm the educational value of explaining method as process viewpoint introducing the principle of lever.
Keywords
process viewpoint; floating and sinking phenomena; Teachers' perception;
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Times Cited By KSCI : 7  (Citation Analysis)
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