2015 BFY II Abstract Detail Page
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||Investigating student understanding of operational-amplifier circuits*
||We describe a systematic, multi-year investigation of student understanding of the behavior of basic operational-amplifier (op-amp) circuits. The participants in this study were undergraduates enrolled in upper-division physics courses on analog electronics at three different institutions, as well as undergraduates in introductory and upper-division electrical engineering courses at one of the institutions. Our findings indicate that many students complete these courses without developing a functional understanding of the behavior of op-amp circuits. We describe the most prevalent conceptual and reasoning difficulties identified (typically after lecture and hands-on laboratory experience) and discuss the implications of our findings for electronics instruction.
*This work has been supported in part by the National Science Foundation under grants DUE-0618185, DUE-0962805, DUE-1022449, and DUE-1323426.
MacKenzie R. Stetzer
University of Maine
5709 Bennett Hall, Room 120
Phone: (207) 581-1033
Christos P. Papanikolaou, University of Athens
George S. Tombras, University of Athens
Kevin L. Van De Bogart, University of Maine
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