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Bussey, Thomas J.; Orgill, MaryKay – Chemistry Education Research and Practice, 2019
Instructors draw on their intentions for student learning in the enactment of curriculum, particularly in the selection and presentation of external representation of scientific phenomena. These representations both create opportunities for students to experience non-experiential biochemical phenomena, such as protein translation, and constrain…
Descriptors: Biochemistry, Science Instruction, Teaching Methods, College Faculty
Baldwin, Nicole; Orgill, MaryKay – Chemistry Education Research and Practice, 2019
Practicing chemists use models, diagrams, symbols, and figures to represent phenomena which cannot be detected by the human senses. Although research suggests that these external representations (ERs) can also be used to address the challenges that students have in learning chemistry, it is not clear how instructors' use of ERs aligns with their…
Descriptors: Teaching Assistants, College Science, Chemistry, Science Laboratories
Bussey, Thomas J.; Orgill, MaryKay – Chemistry Education Research and Practice, 2015
Biochemistry instructors often use external representations--ranging from static diagrams to dynamic animations and from simplistic, stylized illustrations to more complex, realistic presentations--to help their students visualize abstract cellular and molecular processes, mechanisms, and components. However, relatively little is known about how…
Descriptors: Biochemistry, Science Instruction, Scientific Concepts, Concept Formation
Orgill, MaryKay; Bussey, Thomas J.; Bodner, George M. – Chemistry Education Research and Practice, 2015
Biochemistry education relies heavily on students' abilities to conceptualize abstract cellular and molecular processes, mechanisms, and components. From a constructivist standpoint, students build their understandings of these abstract processes by connecting, expanding, or revising their prior conceptions and experiences. As such, biochemistry…
Descriptors: Biochemistry, Science Instruction, College Faculty, Logical Thinking
Bussey, Thomas J.; Orgill, MaryKay; Crippen, Kent J. – Chemistry Education Research and Practice, 2013
Instructors are constantly baffled by the fact that two students who are sitting in the same class, who have access to the same materials, can come to understand a particular chemistry concept differently. Variation theory offers a theoretical framework from which to explore possible variations in experience and the resulting differences in…
Descriptors: Chemistry, College Instruction, Prior Learning, Learning Theories
Orgill, MaryKay; Sutherland, Aynsley – Chemistry Education Research and Practice, 2008
Both upper- and lower-level chemistry students struggle with understanding the concept of buffers and with solving corresponding buffer problems. While it might be reasonable to expect general chemistry students to struggle with this abstract concept, it is surprising that upper-level students in analytical chemistry and biochemistry continue to…
Descriptors: Student Attitudes, Biochemistry, Misconceptions, Undergraduate Students