Selected Work

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Book Chapters

Plaxco, D., Zandieh, M., & Wawro, M. (2018). Stretch Directions and Stretch Factors: A Sequence Intended to Support Guided Reinvention of Eigenvector and Eigenvalue. In Challenges and Strategies in Teaching Linear Algebra (pp. 175-192). Springer, Cham.

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Refereed Publications

Plaxco, D., & Wawro, M. (2015). Analyzing student understanding in linear algebra through mathematical activity. Journal of Mathematical Behavior, 38, 87-100.

 

Refereed Conference Proceedings

Plaxco, D. (2015). John’s lemma: How one student’s proof activity informed his understanding of inverse. To be included in the Proceedings of the Eighteenth Annual Conference on Research in Undergraduate Mathematics Education, #, ##-##.  Pittsburgh, PA.

 

Zandieh, M., Plaxco, D., Wawro, M., Rasmussen, C., Milbourne, H., & Czeranko, K. (2015). Extending multiple choice format to document student thinking. To be included in the Proceedings of the Eighteenth Annual Conference on Research in Undergraduate Mathematics Education, #, ##-##.  Pittsburgh, PA. 

 

Plaxco, D., Wawro, M., & Zeitsman, L. (2014). Student understanding of linear independence of functions. To be included in the Proceedings of the Seventeenth Annual Conference on Research in Undergraduate Mathematics Education (pp. 992-997). Denver, CO.

 

Wawro, M. & Plaxco, D. (2013). Utilizing Types Of Mathematical Activities To Facilitate Characterizing Student Understanding Of Span And Linear Independence. In S. Brown, G. Karakok, K. H. Roh, and M. Oehrtman (Eds.), Proceedings of the Sixteenth Annual Conference on Research in Undergraduate Mathematics Education, Volume 1 (pp. 1-15.)  Denver, CO.

 

Plaxco, D. (2012). Relationships between mathematical proof and definition. In L. R. Van Zoest, J.-J. Lo, & J. L. Kratky (Eds.), Proceedings of the 33rd annual meeting of the North American Chapter of the International Group for Psychology in Mathematics Education (pp. 167-173). Kalamazoo, MI.

 

Plaxco, D. (2011). The temporal conception: student difficulties defining probabilistic independence. In L. R. Wiest & T. Lamberg, (Eds.) Proceedings of the 32nd annual meeting of the North American Chapter of the International Group for Psychology in Mathematics Education (pp. 276-283). Reno, NV.

 

Other Work and Presentations

Reverse Cayley Graphs - presented at JMM, 2015

 

The Case of Joe - presented at PME, 2013

 

Proof and Definition - presented at PME, 2012

 

Paper Folding Poster - presented at TRUSE, 2012

 

Paper Folding Activity (setting it up) - presented at VCTM, 2012

 

Plaxco, D. (2011). Relationship between students' proof schemes and definitions (Master's thesis).