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Saba, Janan; Langbeheim, Elon; Hel-Or, Hagit; Levy, Sharona T. – Journal of Research in Science Teaching, 2023
Electricity, especially the flow of current, is a challenging topic for students of all ages. This study conceptualizes students' explanation of electric current as a cluster of knowledge elements. These clusters, in turn, represent students' mental models of electric circuits. Thus, this study aims to identify and characterize students' mental…
Descriptors: Energy, Scientific Concepts, Schemata (Cognition), Electronic Equipment

Lin, Xiaodong; Lehman, James D. – Journal of Research in Science Teaching, 1999
Describes a study of college students who designed and conducted experiments involving control of variables after being assigned to one of four versions of a computer-based biology simulation learning environment. Finds that reason-justification prompts directed students' attention to understanding the employment of experimental design principles…
Descriptors: Biology, Computer Uses in Education, Context Effect, Higher Education