Sal uses the formula for perimeter to show how the variables can be moved around to solve a problem. He demonstrates a few different ways to do this.

A simple rate problem is looked at in this video. The listener needs to compute whether four trains each going different distances over different amounts of time are moving at the same constant rate. This problem reinforces ones basic...

Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...

Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...

Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...

The instructor demonstrates how to combine like terms as the first step in solving multi-step equations. She applies the rules of combining positive and negative numbers. Then she shows clear steps in solving the equation to find the...

Watch this video to learn how to find the solution to a system of equations with the substitution method! A teacher will lead you through each step necessary, explaining her steps and the reasoning behind her decisions. After watching...

Sal teaches how to use graphing as a tool, not a hindrance, in this helpful video. His lecture would make be a good resource for your algebra class, particularly as the focus shifts to graphing problems and linear systems.

If your class is studying inequalities, consider this video. The focus is on solving a decimal inequality that has negative numbers in it. A lecturer works through an example problem, commenting on the steps and properties necessary to...

Fractions!?! Learn how to solve an equation that has a fraction in it. The teacher shows how to multiply to eliminate fractions in an equation. She then shows the steps in solving the equation by further isolating the variable.

Clarify complex math concepts with a helpful video. Learners view ways to work with ratios and proportions while discussing vocabulary and notation. After solving proportions, they apply the new strategy to word problems.

The instructor goes through the steps of how to solve for the value of a variable in a two-step equation.

Go over how to solve a compound inequality and graph it with this video. The video is clear and concise. A lecturer solves a compound inequality and graphs it on the spot, explaining each operation in detail. Great for in-class or...

A comprehensive video, this resource explains how to solve an equation when you have a variable in the denominator. The lecturer works through 2 different problems that represent 2 situations. From this video, pupils can gain knowledge...

Use the least common denominator to solve rational equations with variables in the denominators of algebraic fractions. Learners can watch this video to find out how to do just this! An instructor solves 2 problems by finding the least...

No negative variables allowed! The instructor demonstrates how to apply the multiplication property of -1 to solve a multi-step equation that has a negative variable.

Love those fractions?!? This lesson involves using the multiplication property of equality to eliminate the fraction in the given equation. In this equation, (2/3)( x-4)=4, the reciprocal of the fraction is used to eliminate it. The...

A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.

A quick demonstration of how to solve an equation and use that solution to determine another value, this tutorial video could be used in class or at home. The demo acts as a model for solving this type of problem. Have your pupils keep...

Games are the feature of this film. Children share their favorite games in this short clip. This could be used before a lesson on games.

Solving three equations with three unknowns can be challenging. This video solves the equations using the elimination method.

The teacher demonstrates how to use the addition property of equality, applying it to both sides of the equation to find the solution.

The teacher demonstrates how to use the subtraction property of equality, applying it to both sides of the equation to find the solution.

Are you befuddled after reading this word problem? Not only is it a word problem but there are two variables, and not only does it have two variables, but it is an inequality. Don't pull your hair out! Take a deep breath and watch this...