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Students' Understanding of External Representations of the Potassium Ion Channel Protein, Part I: Affordances and Limitations of Ribbon Diagrams, Vines, and Hydrophobic/Polar Representations
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Harle, Marissa; Towns, Marcy H. – Biochemistry and Molecular Biology Education, 2012
Research on external representations in biochemistry has uncovered student difficulties in comprehending and interpreting external representations. This project focuses on students' understanding of three external representations of the potassium ion channel protein. This is part I of a two-part study, which focuses on the affordances and…
Descriptors: Prior Learning, Biochemistry, Science Instruction, Scientific Concepts
Students' Understanding of External Representations of the Potassium Ion Channel Protein Part II: Structure-Function Relationships and Fragmented Knowledge
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Harle, Marissa; Towns, Marcy H. – Biochemistry and Molecular Biology Education, 2012
Research that has focused on external representations in biochemistry has uncovered student difficulties in comprehending and interpreting external representations. This study focuses on students' understanding of three external representations (ribbon diagram, wireframe, and hydrophobic/hydrophilic) of the potassium ion channel protein. Analysis…
Descriptors: Concept Formation, Prior Learning, Biochemistry, Science Instruction