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Southard, Katelyn M.; Espindola, Melissa R.; Zaepfel, Samantha D.; Bolger, Molly S. – International Journal of Science Education, 2017
When conducting scientific research, experts in molecular and cellular biology (MCB) use specific reasoning strategies to construct mechanistic explanations for the underlying causal features of molecular phenomena. We explored how undergraduate students applied this scientific practice in MCB. Drawing from studies of explanation building among…
Descriptors: Molecular Biology, Biology, Science Instruction, Qualitative Research
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Kern, Anne L.; Wood, Nathan B.; Roehrig, Gillian H.; Nyachwaya, James – Chemistry Education Research and Practice, 2010
We report the findings of a large-scale (n = 1,337) qualitative descriptive analysis of U.S. high schools students' particulate representations of a chemical reaction, specifically, the combustion of methane. Data were collected as part of an end of course exam. Student representations were coded into 17 distinct subcategories under one of five…
Descriptors: Chemistry, Secondary School Science, High School Students, Molecular Structure