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Espinosa, Allen A.; Marasigan, Arlyne C.; Datukan, Janir T. – Teaching Science, 2016
This study explored how students visualise the states and classifications of matter with the use of scientific models. Misconceptions of students in using scientific models were also identified to formulate a teaching framework. To elicit data in the study, a Visual Conception Questionnaire was administered to thirty-four (34), firstyear, general…
Descriptors: Teaching Models, Foreign Countries, Misconceptions, Scientific Concepts
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Tasker, Roy – Teaching Science, 2014
Why is chemistry so difficult? A seminal paper by Johnstone (1982) offered an explanation for why science in general, and chemistry in particular, is so difficult to learn. He proposed that an expert in chemistry thinks at three levels; the macro (referred to as the observational level in this article), the sub-micro (referred to as the molecular…
Descriptors: Chemistry, Visualization, Molecular Structure, Theory Practice Relationship