# ALEX Lesson Plan

## Add, Subtract, and Multiply Matrices

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This lesson provided by:
 Author: Morgan Boyd Organization: Retirement
General Lesson Information
 Lesson Plan ID: 35674 Title: Add, Subtract, and Multiply Matrices Overview/Annotation: The lesson will introduce the concept of a matrix. The matrix is labeled by its rows and columns. This lesson will teach the concept of adding, subtracting, scalar multiplication, and multiplication of matrices. This lesson will be a prerequisite for solving systems of equations with matrices.This lesson results from the ALEX Resource Gap Project.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 9-12 Algebra II 9 ) (+) Add, subtract, and multiply matrices of appropriate dimensions. [N-VM8] Mathematics MA2015 (2016) Grade: 9-12 Algebra II with Trigonometry 9 ) (+) Add, subtract, and multiply matrices of appropriate dimensions. [N-VM8]

Local/National Standards:

Primary Learning Objective(s):

The student will be able to multiply a scalar by a matrix.

The student will be able to add matrices.

The student will be able to subtract matrices.

The student will be able to multiply matrices.