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You've Heard of Cramer's Rule, Now Try Comer's: An Alternative Approach to Finding Determinants

Michelle J. Genovese 

February 2006, Volume 99, Issue 6, Page 446

Abstract:
This article describes Cramer's Rule and then discusses Comer's Method, a student's discovery of an alternative approach to solving the determinant of a 3x3 matrix. Comer's Method and her work is detailed .

Keywords:
Algebra
Article
Communication
Teacher in Training / Preservice Teacher
Higher Education
Grades 9-12
Connections / Applications
Math Coordinator / Coach
Problems
Student Work
Reasoning and Proof
Theory