- - Class Notes regarding 2 x 2 matrices and finding their determinants and inverses (Definitions of the Multiplicative Identity Matrix, Multiplicative Inverse of a Matrix, and the Determinant of a 2 x 2 Matrix.)
- - A worksheet of basic skill practice (With detailed answer key), including work on the following word problem: "A city has a stable group of 45,000 households.
Since last year, 84% of the households that used to use carrier A remained with carrier A, while 16% switched to carrier B. 93% of the households that used B stayed with B, while 7% of households using B switched to A. This year, 25,000 households now use long-distance carrier A, and 20,000 use long-distance carrier B..."
- - 2 similar Pop quizzes (With detailed answer keys) for students to be assessed as to how much they retained for this topic.
Note: For this topic, an introductory understanding of matrices and matrix multiplication are skills already implied.
I hope you will also consider my introduction to this topic of matrices, "Intro to Matrix Organization (Addition, Subtraction, Multiplication): https://www.teacherspayteachers.com/Product/Intro-to-Matrix-Organization-AdditionSubtraction-Multiplication-WS-Qz-Keys-4892683
**I have been a teacher now for over a collective 20 years, 15+ of those teaching each mathematical level in Pennsylvania schools ranging from Pre-Algebra to Pre-Calculus. All of my submissions have been used for my classes for multiple years to great success.