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Abstract Title: Toward a framework for the natures of proportional reasoning in introductory physics
Abstract: We present a set of modes of reasoning about ratio and proportion as a means of operationalizing expert practice in physics. These modes, or natures of proportional reasoning, stem from consideration of how physicists reason in context and are informed by prior work in physics and mathematics education. We frame the natures as the core of an emerging framework for proportional reasoning in introductory physics, that will categorize the uses of proportional reasoning in introductory physics contexts, and provide guidance for the development of reliable assessments. We share results from preliminary assessment items indicating that university physics students have difficulty interpreting and applying ratios in context.
Abstract Type: Contributed Poster Presentation
Session Time: Poster Session III
Poster Number: 3.J5
Contributed Paper Record: Contributed Paper Information
Contributed Paper Download: Download Contributed Paper

Author/Organizer Information

Primary Contact: Andrew Boudreaux
Western Washington University
Bellingham, WA 98225
Phone: 3603148143
and Co-Presenter(s)
Stephen E. Kanim, New Mexico State University
Alexis Olsho, Suzanne White Brahmia, and Charlotte Zimmerman, University of Washington
Trevor I. Smith, Rowan University