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written by Seth DeVore, Alexandre Gauthier, Jeremy Levy, and Chandralekha Singh
A lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier which can lead to a variety of difficulties. To improve students' understanding, we have been developing and evaluating a research-based tutorial which makes use of a computer simulation of a lock-in amplifier. The tutorial is based on a field-tested approach in which students realize their difficulties after predicting the outcome of simulated experiments involving a lock-in amplifier and check their predictions using the simulated lock-in amplifier. Then, the tutorial guides and helps students develop a coherent understanding of the basics of a lock-in amplifier. The tutorial development involved interviews with physics faculty members and graduate students and iteration of many versions of the tutorial with professors and graduate students. The student difficulties and the development and assessment of the research-based tutorial are discussed.
Physics Education Research Conference 2013
Part of the PER Conference series
Portland, OR: July 17-18, 2013
Pages 121-124
Subjects Levels Resource Types
Education - Applied Research
- Instructional Material Design
= Tutorial
- Technology
Education - Basic Research
- Assessment
- Research Design & Methodology
= Evaluation
Electricity & Magnetism
- DC Circuits
= Instruments
- Graduate/Professional
- Reference Material
= Research study
PER-Central Type Intended Users Ratings
- PER Literature
- Researchers
- Professional/Practitioners
- Educators
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Format:
application/pdf
Mirror:
http://dx.doi.org/10.1119/perc.20…
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.2013.pr.018
NSF Number:
1124131
PACSs:
01.40.Fk
01.40.gb
01.40.G-
Keywords:
PERC 2013, lock-in amplifier, think-aloud protocol, tutorial
Record Cloner:
Metadata instance created January 30, 2014 by Lyle Barbato
Record Updated:
January 30, 2014 by Lyle Barbato
Last Update
when Cataloged:
December 16, 2013
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
S. DeVore, A. Gauthier, J. Levy, and C. Singh, presented at the Physics Education Research Conference 2013, Portland, OR, 2013, WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673).
AJP/PRST-PER
S. DeVore, A. Gauthier, J. Levy, and C. Singh, Improving Students' Understanding of Lock-In Amplifiers presented at the Physics Education Research Conference 2013, Portland, OR, 2013, <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673>.
APA Format
DeVore, S., Gauthier, A., Levy, J., & Singh, C. (2013, July 17-18). Improving Students' Understanding of Lock-In Amplifiers. Paper presented at Physics Education Research Conference 2013, Portland, OR. Retrieved September 2, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673
Chicago Format
DeVore, S, A. Gauthier, J. Levy, and C. Singh. "Improving Students' Understanding of Lock-In Amplifiers." Paper presented at the Physics Education Research Conference 2013, Portland, OR, July 17-18, 2013. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673 (accessed 2 September 2014).
MLA Format
DeVore, Seth, Alexandre Gauthier, Jeremy Levy, and Chandralekha Singh. "Improving Students' Understanding of Lock-In Amplifiers." Physics Education Research Conference 2013. Portland, OR: 2013. 121-124 of PER Conference. 2 Sep. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673>.
BibTeX Export Format
@inproceedings{ Author = "Seth DeVore and Alexandre Gauthier and Jeremy Levy and Chandralekha Singh", Title = {Improving Students' Understanding of Lock-In Amplifiers}, BookTitle = {Physics Education Research Conference 2013}, Pages = {121-124}, Address = {Portland, OR}, Series = {PER Conference}, Month = {July 17-18}, Year = {2013} }
Refer Export Format

%A Seth DeVore
%A Alexandre Gauthier
%A Jeremy Levy
%A Chandralekha Singh
%T Improving Students' Understanding of Lock-In Amplifiers
%S PER Conference
%D July 17-18 2013
%P 121-124
%C Portland, OR
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673
%O Physics Education Research Conference 2013
%O July 17-18
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A DeVore, Seth
%A Gauthier, Alexandre
%A Levy, Jeremy
%A Singh, Chandralekha
%D July 17-18 2013
%T Improving Students' Understanding of Lock-In Amplifiers
%B Physics Education Research Conference 2013
%C Portland, OR
%P 121-124
%S PER Conference
%8 July 17-18
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=13124&DocID=3673


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The AIP Style presented is based on information from the AIP Style Manual.

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