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KMID : 1059520100540060799
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Journal of the Korean Chemical Society
2010 Volume.54 No. 6 p.799 ~ p.808
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Pre-service Chemistry Teachers’ Misconceptions about Motions of Molecular Gases: Translational, Vibrational and Rotational Motion
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Seo Young-Jin
Choi Jin-Kwon
Chae Hee-Kwon
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Abstract
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In this study, we conducted a textbook analysis and a conceptual test in order to investigate misconceptions of preservice chemistry teachers in understanding motions of molecular gases. As a result, we found out that many of the general chemistry textbooks not only introduce motions of molecular gases by explaining basic conceptions and using simple models, but also omit the explanation on center of mass when dealing with rotational motion. The physical chemistry textbooks, however, mainly approach motions of molecular gases in terms of spectroscopy and use various models to explain more intensified concepts, referring the center of mass in rotational motions. Meanwhile, pre-service chemistry teachers’ confidence and understanding in the motions of molecular gases were very low and pre-service teachers also had many misconceptions about them. We believe this is because they had a tendency to depend largely on their intuition based on the pre-conceptions and the visual materials in the textbooks.
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KEYWORD
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Motions of molecular gases, Pre-service chemistry teacher, Translational motion, Vibrational motion, Rotational motion, Misconception
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