This Computer Algebra System (CAS) activity encourages students to investigate addition, subtraction, and multiplication of matrices. They find the inverse of a matrix. Students also solve a set of linear equations by using matrices.

In Spanish. Practice how to solve system of equations graphically with this interactive activity.

Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...

[Free Registration/Login may be required to access all resource tools.] Graph linear inequalities to find solutions.

Rewrite an expression containing two unknown variables by choosing a given equation that is equivalent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

Learners explore the Algebra II topic of matrices. The tutorial demonstrates how to calculate the determinant of 2 by 2 and 3 by 3 matrices. The activity includes examples with detailed solutions.

Examples are provided to demonstrate how to use matrices to solve 2x2 and 3x3 matrices. Examples include real world applications and some are interactive.

High School Operations Research Math Modules - Applied Mathematics for decision making in industry and government

Latisha is trying to decide on an investment plan that will make the most money, help her determine the best plan.

Use this tutorial to learn how Cramer's Rule works for 3 x 3.

This lesson explains how the determinant is used for Cramer's Rule.

Students are given the opportunity to visualize and interact with concepts they have already learned, specifically algebraic equations and solving for unknown variables. Students construct a balancing seesaw system (LEGO Balance Scale)...

This Computer Algebra System (CAS) activity encourages students to perform basic arithmetic operations on matrices, and solving a set of equations using CAS.

[Free Registration/Login may be required to access all resource tools.] This lesson defines, organizes, and compares matrices. Includes examples, video, and review problems.

Is it any wonder that students are suspicious? We lead, sometimes drag, them through Algebra I insisting they must follow the order of operations. We make them learn the "hard way" of doing an assignment one day only to show them the...

This MathWorld site gives Euclid's definition of a line, properties of lines, common terminology, and algebraic representations of lines and their distinctive parts in a cartesian system. The site then goes into detail of different line...

This activity uses geometric examples to illustrate the method of elimination to obtain a Cartesian equation using the Computer Algebra System CAS tool.

In this exercise, students practice age word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.