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ERIC Number: EJ1290195
Record Type: Journal
Publication Date: 2021-Mar
Pages: 6
Abstractor: ERIC
ISBN: N/A
ISSN: ISSN-0025-5769
EISSN: N/A
Available Date: N/A
Visualizing Complex Roots of a Quadratic Equation
Edwards, Thomas; Özgün-Koca, S. Asli; Chelst, Kenneth
Mathematics Teacher: Learning and Teaching PK-12, v114 n3 p238-243 Mar 2021
In this article, the authors share activities designed to help students make a connection between the complex roots of X[superscript 2] - 2x + 5 = 0 and the graph of y = X[superscript 2] - 2x + 5. We piloted these activities in three precalculus classes. The activities involved both concrete and technological representations of the mathematical situation. Students manipulated the concrete representation, whereas one of the authors manipulated a GeoGebra representation. In so doing, the authoss believe that students were using these two representations to model and interpret a mathematical phenomenon, as suggested in "Principles and Standards for School Mathematics" (NCTM 2000), as well as making connections between the two representations.
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191. Tel: 800-235-7566; Tel: 703-620-9840; Fax: 703-476-2570; e-mail: nctm@nctm.org; Web site: https://pubs.nctm.org/
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A