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http://dx.doi.org/10.5467/JKESS.2008.29.4.352

Pre-Service Teachers' Understandings on Earth Science Concept needed for an Integrated Approach: Exploring Mental Models about Eclipse Phenomena by Analyzing Phenomenological Primitives and Facets  

Lee, Ki-Young (Division of Science Education, Kangwon National University)
Publication Information
Journal of the Korean earth science society / v.29, no.4, 2008 , pp. 352-362 More about this Journal
Abstract
This study explored pre-service teachers' mental models about eclipse phenomena to investigate their understandings on the earth science concept needed f3r an integrated approach. We conducted in-depth interviews with two different contexts on 30 secondary and 36 primary pre-service teachers participants, and analyzed phenomenological primitives (p-prims) and facets of causal explanations about eclipses. Based on this study, we identified four different levels of mental models about eclipses. Four mental models were categorized as (1) Screening model, (2) Orbital plane model, (3) Hybrid model, and (4) Shadow cast model. Screening model is a flawed mental model, orbital plane model is an incomplete correct mental model, and shadow cast model is a scientifically correct mental model. Hybrid model, composite of two or more mental models, use multiple mental models simultaneously. Orbital plane model was the most widespread mental model in secondary pre-service teachers group, whereas screening model was used frequently in primary group. It was found that the level of mental model could be determined by the level of facet and p-prims. We confirmed context sensitivity of the mental models and perceived the necessity of integrated approaches to promote progression of mental models. Implications of our findings for enhancing pre-service science teachers' topic-specific pedagogical content knowledge (PCK) associated with eclipse phenomena are also discussed here.
Keywords
mental model; pre-service teacher; facet; eclipse; earth science;
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Times Cited By KSCI : 5  (Citation Analysis)
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