Cool Math
Coolmath: Inverse Matrices
You can add and subtract matrices, multiply a matrix by a scalar, and multiply two matrices. So, what about division? Well, there isn't a division process for matrices. See this example for how to get around this problem!
Cuemath
Cuemath: How to Solve Matrices
In this mini-lesson, we will explore the world of matrices by finding the answers to questions like how to solve systems of equations with matrices, how to solve matrices, and matrix operations with examples and formulas while...
Math Notes and Math Tests
Pre Calculus Notes: Matrices and Systems of Equations [Pdf]
Students learn about matrices and systems of equations. Topics explored are elementary row operations, Gaussian elimination, row-echelon form, and systems with infinitely many solutions. Class notes and examples are included.
Math Notes and Math Tests
Pre Calculus Notes: Operations With Matrices [Pdf]
Students explore operations with matrices. Topics examined are matrix addition, scalar multiplication, matrix multiplication, and identity matrices. Class notes and examples are included.
Wolfram Research
Wolfram Math World: Gaussian Elimination
This site provides an example of Guassian Elimination and concludes with a specific example.
Math Medics
S.o.s. Math: Gaussian Elimination
In this lesson, the Gaussian Elimination method is used to solve systems of linear equations. Provides several formulas and examples for understanding.
Other
Hong Kong University of Science and Technology: Augmented Matrix
Demonstration of how an augmented matrix is used to solve a system of linear equations.
Sophia Learning
Sophia: Matrix Multiplication: Lesson 3
This lesson introduces matrix multiplication, distinguishes it from multiplying by a scalar, and provides examples of the operation. It is 3 of 2 in the series titled "matrix multiplication."
Sophia Learning
Sophia: Using Elementary Row Operations to Solve for Systems of Equations
This lesson presents how to use elementary row operations to solve for a system of linear equations.
Sophia Learning
Sophia: Using Matrices to Organize Data: Lesson 2
This lesson provides real-world examples that demonstrate how to organize data into matrices. It is 2 of 5 in the series titled "Using Matrices to Organize Data."
Sophia Learning
Sophia: Using Matrices to Organize Data: Lesson 1
This lesson provides some real-world examples that demonstrate how to organize data into matrices. It is 1 of 5 in the series titled "Using Matrices to Organize Data."
Sophia Learning
Sophia: Writing Systems of Equations With Augmented Matrices: Lesson 4
This lesson demonstrates how to write systems of equations as augmented matrices. It is 4 of 5 in the series titled "Writing Systems of Equations with Augmented Matrices."
Sophia Learning
Sophia: Writing Systems of Equations With Augmented Matrices #4
This lesson demonstrates how to write systems of equations as augmented matrices.
Sophia Learning
Sophia: Writing Systems of Equations With Augmented Matrices: Lesson 5
This lesson demonstrates how to write systems of equations as augmented matrices. It is 5 of 5 in the series titled "Writing Systems of Equations with Augmented Matrices."
Sophia Learning
Sophia: Row Operations: Lesson 3
This lesson introduces the basic row operations that can be performed on matrices, explaining why they are valid things to do and providing examples of each. It is 3 of 9 in the series titled "Row Operations."
Sophia Learning
Sophia: Using Determinants to Classify 3x3 Matrices: Lesson 3
This lesson demonstrates how the determinant of a 3x3 matrix can be used to tell whether or not the matrix represents a dependent linear system, an inconsistent linear system, or neither.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Matrices
Find a quick, concise explanation of matrices. Examples are given and clearly explained.
ClassFlow
Class Flow: Inverse Matrices and Systems
[Free Registration/Login Required] This flipchart shows students how to solve systems of equations using inverse matrices for real-world problem situations.
ClassFlow
Class Flow: Organizing Data in Matrices
[Free Registration/Login Required] This lesson looks at organizing data into a matrix, as well as identifying the different elements in a matrix.
Interactive Mathematics
Interactive Mathematics: Multiplication of Matrices
A demonstration of matrix multiplication is presented through several detailed examples. Explanations of how the commutative law works only on the identity and inverse matrices are also included.
Interactive Mathematics
Interactive Mathematics: Matrices and Linear Equations
Examples are provided to demonstrate how to use matrices to solve 2x2 and 3x3 matrices. Examples include real world applications and some are interactive.