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.
Descriptors: Calculus, Mathematics Instruction, Graphs, Computer Software, Teaching Methods, Standards, Learning Activities, Computer Assisted Instruction, Teacher Student Relationship
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