1. Alg 2
Ch 6 Matrices

2. 6.2 Day 1: Addition, Subtraction, Scalar Multiplication
Preview: Notation in calc for matrices
Discover: What does Matrix Addition do?
Check for understanding: Subtraction example
Mini Lesson: Scalar Multiplication
Check for understanding: Order of Ops with Matrices

3. 6.2 Day 2: Matrix Multiplication
Lesson: 2-D Images as Matrices
Practice:
Lesson: Matrix Multiplication
Practice: Matrix Multiplication

4. 6.3 Day 1: Inverses Matrices
Lesson: Identity Matrix
Pg. 336 Definition
Practice Multiplying by ID matrix
Lesson: Inverses Matrices
Using Calculator -1
Example A pg. 336
Lesson: Systems of Equations with Matrices
2 by 2 Example B pg. 338
3 by 3 #19 on WS

5. 6.3 Day 2: Systems of Matrices
Review 3x3 systems
Warm up: Write a system of matrices for :
Story Problems
Rolando EX.
Pg. 335
Pg. 341 #8

7. Recap of Ch 6 by Period 1
6.2
Multiply matrices with and without calc (inside dimensions match)
Add/Subtract matrices without calc (exact dimensions match)
Matrices representing 2-D objects (like a triangle)
Scalar multiplication of a Matrix (just like distributing) without a calc
6.3
Solving systems of equations with matrices with calc
Identity Matrix
Story problems to Matrices and solve with a calc
Using Inverse matrices with a calc

8. Recap of Ch 6 by Period 2
6.2
Scalar Multiplication of Matrices (without calc)
Addition and Subtraction of Matrices (without calc)
Multiply matrices without a calc (understand the inside/outside dimensions rule) and multiply row by column
Dimensions are labeled as row by column
Use matrices to represent triangles, etc.
6.3
Inverse matrix by calculator
Matrix system of equation
[a] *[a]^-1 is the identity
Story problems!!

9. Ch 6 Recap by period 4
6.2
Organizing with a matrix, know dimensions row x column
Scalar Multiplication of Matrix (without calc)
Matrix Multiplication (without calc)
Add and Subtract Matrices (without calc)
Graph a 2-D image from Matrix (x coordinates top row, y coordinates bottom row), translations, etc.
6.3
Identity Matrix
Inverse Matrix (with calc)
Systems of Equation to a Matrix
Word Problems!!!!!!!!!!!