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Pathways to proposing causes for unexpected experimental results
written by Laura Ríos, Benjamin Pollard, Dimitri R. Dounas-Frazer, and H. J. Lewandowski
Models of physical systems are used to explain and predict experimental results and observations. When students encounter discrepancies between the actual and expected behavior of a system, they revise their models to include the newly acquired observations, or change their apparatus to better represent their models. The Modeling Framework for Experimental Physics describes the process of matching measurements and observations to models by making revisions to resolve discrepancies. As part of a larger effort to create assessments of students' modeling abilities in the context of upper-division electronics courses, we used the Modeling Framework to develop and code think-aloud problem-solving activities centered on troubleshooting an inverting amplifier circuit. We observed that some participants iteratively and continuously made measurements and revisions if they could not immediately propose a cause for an observed discrepancy. This pathway has not been previously discussed in the Modeling Framework. In this paper, we discuss two episodes where students undergo this process to converge on a proposed cause post hoc. We conclude by discussing implications for a modeling assessment based on the observed modeling behavior
Physics Education Research Conference 2018
Part of the PER Conference series
Washington, DC: August 1-2, 2018
Subjects Levels Resource Types
Education - Applied Research
- Active Learning
= Modeling
= Problem Solving
- Instructional Material Design
= Activity
Education - Basic Research
- Assessment
- Upper Undergraduate
- Reference Material
= Research study
PER-Central Type Intended Users Ratings
- PER Literature
- Researchers
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Format:
application/pdf
Mirror:
https://doi.org/10.1119/perc.2018…
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution 3.0 license. Further distribution of this work must maintain attribution to the published article's author(s), title, proceedings citation, and DOI.
Rights Holder:
American Association of Physics Teachers
DOI:
10.1119/perc.2018.pr.Rios
NSF Numbers:
1611868
1726045
1734006
Keyword:
PERC 2018
Record Creator:
Metadata instance created December 31, 2018 by Lyle Barbato
Record Updated:
January 22, 2019 by Lyle Barbato
Last Update
when Cataloged:
December 31, 2018
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Record Link
AIP Format
L. Ríos, B. Pollard, D. Dounas-Frazer, and H. Lewandowski, presented at the Physics Education Research Conference 2018, Washington, DC, 2018, WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994).
AJP/PRST-PER
L. Ríos, B. Pollard, D. Dounas-Frazer, and H. Lewandowski, Pathways to proposing causes for unexpected experimental results, presented at the Physics Education Research Conference 2018, Washington, DC, 2018, <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994>.
APA Format
Ríos, L., Pollard, B., Dounas-Frazer, D., & Lewandowski, H. (2018, August 1-2). Pathways to proposing causes for unexpected experimental results. Paper presented at Physics Education Research Conference 2018, Washington, DC. Retrieved March 3, 2021, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994
Chicago Format
Ríos, L, B. Pollard, D. Dounas-Frazer, and H. Lewandowski. "Pathways to proposing causes for unexpected experimental results." Paper presented at the Physics Education Research Conference 2018, Washington, DC, August 1-2, 2018. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994 (accessed 3 March 2021).
MLA Format
Ríos, Laura, Benjamin Pollard, Dimitri Dounas-Frazer, and H. J. Lewandowski. "Pathways to proposing causes for unexpected experimental results." Physics Education Research Conference 2018. Washington, DC: 2018. of PER Conference. 3 Mar. 2021 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994>.
BibTeX Export Format
@inproceedings{ Author = "Laura Ríos and Benjamin Pollard and Dimitri Dounas-Frazer and H. J. Lewandowski", Title = {Pathways to proposing causes for unexpected experimental results}, BookTitle = {Physics Education Research Conference 2018}, Address = {Washington, DC}, Series = {PER Conference}, Month = {August 1-2}, Year = {2018} }
Refer Export Format

%A Laura Ríos
%A Benjamin Pollard
%A Dimitri Dounas-Frazer
%A H. J. Lewandowski
%T Pathways to proposing causes for unexpected experimental results
%S PER Conference
%D August 1-2 2018
%C Washington, DC
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994
%O Physics Education Research Conference 2018
%O August 1-2
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A Ríos, Laura
%A Pollard, Benjamin
%A Dounas-Frazer, Dimitri
%A Lewandowski, H. J.
%D August 1-2 2018
%T Pathways to proposing causes for unexpected experimental results
%B Physics Education Research Conference 2018
%C Washington, DC
%S PER Conference
%8 August 1-2
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14847&DocID=4994


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