Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Cramer's Rule and Determinant of a Matrix

For Students 9th - 10th Standards
Sixteen problems present a variety of practice using Cramer's Rule to solve equations and systems of equations and working with the determinant of a matrix. They are given with each step to the solution cleverly revealed one at a time....
Handout
Wolfram Research

Wolfram Math World: Determinant

For Students 9th - 10th Standards
This site has a good definition and examples of determinants, the site begins by explaining what the value of a determinant is, then gives an example of the determinant of a two by two matrix, a generic formula for finding the...
Unit Plan
CK-12 Foundation

Ck 12: Determinants

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in the real numbers. The determinant...
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Determinant of a Matrix

For Students 9th - 10th Standards
Find a quick, concise explanation of how to find the determinant of a matrix. Several examples are given and clearly explained.
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Khan Academy

Khan Academy: Determine Invertible Matrices

For Students 9th - 10th Standards
Given a 2x2 matrix, determine whether it has an inverse. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Determinants

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the determinant of a 2 x 2 and a 3 x 3 matrix.
Unit Plan
CK-12 Foundation

Ck 12: Inverse Matrices

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] A collection of resources that teaches students that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1...
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McGraw Hill

Glencoe: Quiz on Determinants and Multiplicative Inverses of Matrices

For Students 9th - 10th Standards
Learners demonstrate comprehension of advanced mathematical concepts in Algebra II. The questions check understanding on matrices. Topics include determinants and multiplicative inverses.
Activity
Interactive Mathematics

Interactive Mathematics: Multiplication of Matrices

For Students 9th - 10th Standards
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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Inverse Matrices

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the inverse of a 2 x 2 matrix. Students can look at guided notes and then attempt practice problems.
Activity
Interactive Mathematics

Interactive Mathematics: Matrices

For Students 9th - 10th Standards
This over view of matrices begins with an application to electronics using circuit equations. Examples are provided to demonstrate types of matrices, the identity matrix, addition and scalar multiplication of matrices.
Handout
Math Notes and Math Tests

Pre Calculus Notes: The Determinant of a Square Matrix [Pdf]

For Students 9th - 10th Standards
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.
Primary
J Coffman

Joseph Coffman's Lecture Notes: 2 X 2 Matrices, Determinants, Inverses

For Students 9th - 10th Standards
Learners investigate matrices, determinants, and inverses. Topics include the identity matrix and inverse of a matrix. The resource consists of examples with detailed solutions and a quiz.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Writing and Solving a Matrix Equation

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a matrix equation to solve a system of linear equations.
Lesson Plan
Other

Metal: Matrices [Pdf]

For Teachers 9th - 10th Standards
The resource is a lesson guide that teaches the basic mathematical concepts needed for teaching economics and financial economics. Topics include matrix transposition, matrix inversion, and operations with matrices. Applications of Excel...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Systems of Inequalities

For Students 9th - 10th Standards
Hotmath provides 21 practice problems dealing with systems of equations and inequalities. Each of the practice problems include a step-by-step guide for solving their algebraic problem.
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Khan Academy

Khan Academy: Precalculus: Matrix Row Operations

For Students 9th - 10th Standards
Determine the matrix that is the result of performing a specific row operation on a given matrix. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Represent Linear Systems With Matrices

For Students 9th - 10th Standards
Determine the matrix that represents a given system of linear equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Activity
Interactive Mathematics

Interactive Mathematics: Matrices and Linear Equations

For Students 9th - 10th Standards
Examples are provided to demonstrate how to use matrices to solve 2x2 and 3x3 matrices. Examples include real world applications and some are interactive.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Adding and Subtracting Matrices

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers adding and subtracting matrices with the same dimensions. Students can watch a video tutorial, explore guided notes and then attempt practice...
PPT
Sophia Learning

Sophia: Using Determinants to Classify 3x3 Matrices: Lesson 2

For Students 9th - 10th Standards
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.
Unit Plan
Sophia Learning

Sophia: Using Determinants to Classify 3x3 Matrices: Lesson 3

For Students 9th - 10th Standards
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.
PPT
Sophia Learning

Sophia: Using Determinants to Classify 2x2 Matrices: Lesson 2

For Students 9th - 10th Standards
This lesson demonstrates how the determinant of a 2x2 matrix can be used to tell whether or not the matrix represents a dependent linear system, an inconsistent linear system, or neither.
Activity
Texas Instruments

Texas Instruments: Determinants and Inverse Matrices

For Teachers 9th - 10th Standards
In these questions, students are asked to find the determinant and the inverse of four 2 x 2 matrices. These multiple choice questions have solutions provided.