A "minor" is the determinant of the square matrix formed by deleting one row and one column from some larger square matrix. To find the determinant of the matrix A, you have to pick a row or a column of the matrix, find all the cofactors...

Based off of the hit television show NUMB3RS, this lesson combines the topics of graph theory and matrix multiplication in order to see the path of customer referrals to different fictional restaurants. Students create a matrix based off...

This CoolMath resource will help students understand the concept of scalar multiplication.

Find a quick, concise explanation of the dimensions of a matrix. Examples are given and clearly explained.

Two methods are demonstrated for finding the inverse of a matrix. The examples are detailed and easy to follow. Several interactive examples are also provided.

This article is an in-depth look at graphs. Topics covered are graph models, terminology, representations of graphs, graph isomorphism, connectivity, Euler and Hamiltonian Paths, and more. Examples and explanations are included.

This lesson introduces the notion of a singular matrix and provides a shortcut to determine whether or not a given 2x2 matrix is singular. It is 1 of 5 in the series titled "Singular and Non-Singular Matrices."

This lesson introduces the notion of a singular matrix and provides a shortcut to determine whether or not a given 2x2 matrix is singular. It is 3 of 5 in the series titled "Singular and Non-Singular Matrices."

This is a page with photographs of Stupas in Nepal. Provides some history on these holy sites.

This resource gives a brief definition of a square matrix, click on the highlighted terms for more information on matrices.

Math World offers the transformational matrix that allows us to rotate a two dimensional coordinate which in turn rotates the image. The page also offers the transformational matrix for rotation in three dimensions.

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."

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."

Find a quick, concise explanation of how to find the determinant of a matrix. Several examples are given and clearly explained.

Students explore the inverse of a square matrix. Topics examined are the inverse of a real number, using inverses to solve systems, and the determinant of a 2 x 2 matrix. Class notes and examples are included.

Printable PDF file of a Probable Passage Matrix graphic organizer. It asks students to identify the characters, setting, problem, solution, and ending of a story, and it is provided by a standardized test preparation site intended for...

The resource investigates the determinant of a square matrix. Topics examined are computing determinants, Sarrus?s rule, and the cross product of two vectors. Class notes and examples are included.

In March, 1947, President Truman issued an executive order requiring that all Federal employees take a loyalty oath swearing loyalty to the United States. This was a time of fear of Communists and the Soviet Union. Read the entire...

Based off of the hit television show NUMB3RS, this lesson introduces students to a couple applications of matrices. Namely, a competition matrix is manipulated so as to rank included players, squared to see how opponents did, and finally...

Based off of the hit television show NUMB3RS, this lesson uses matrices (inverse and multiplication) to decode messages hidden within digital pictures -- a process known as steganography. This method of hidden communication is known to...

The lesson plan investigates how to use matrices to solve a complex linear programming problem. Educators can download printable version of the lesson in pdf format.

Based off of the hit television show NUMB3RS, this activity introduces students to the concept of Markov Chains, and shows students how to find the probability of something (dependent) happening in the future, given certain conditions...

This site provides a detailed unit on finding the slope of lines that investigates methods for solving systems of equations. Good lesson plan for class.

Mathworld provides a three step explanation of Gauss-Jordan elimination. To help you better understand the process, you can click on any of the highlighted terms for definitions.