Investigate inequalities with this instructional video. A lecturer presents an inequality that will take multiple steps to complete and works through the problem step-by-step, numbering and labeling each action she takes. This video is...

The formula for the volume of a sphere is - volume equals four thirds pi times the radius cubed. That's a mouth-full. But if you are given the radius value of the sphere, all you have to do is plug it in and do the arithmetic. Just...

Set up a table to keep track of your values as you evaluate an exponential function. Select some values for the table to plug in to the given exponential expression. Then evaluate the expression. Do you see a pattern?

So do you really want to know how to find a rational number between two given fractions? The teacher explains how to average the two fractions to find a rational number between the two fractions. There are several steps involved in...

Solve an equation that has both variables and fractions. Use the rules of equality to add, subtract, multiply, and divide to isolate the variable and find your answer. Don't forget to plug your answer into the original problem to verify.

Learning how to solve problems using the order of operations can be challenging. This video explores the how's and why's for the order of operations. This is a must-see video for middle school learners.

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...

If you evaluate the resource, you'll find it very useful. Scholars learn to evaluate algebraic expressions by watching an informative video. It gives an expression of the form (a+b)/(cd) as an example and shows viewers how to evaluate...

There's no substitute for learning through examples. A brief YouTube video shows how to evaluate an algebraic expression through substitution. The expression of interest is in the form (a-b)/(cd), where the values of the variables are...

Simplifying expressions in a nice, orderly fashion is ideal. Young scholars learn to simplify expressions of the form a + b(c - d(e^2 + f). The exercise obviously requires meticulous use of the order of operations.

The formula for the volume of a sphere is volume equals four-thirds pi times the radius cubed. That's a mouth-full. But if you are given the radius value of the sphere, all you have to do is plug it in and do the arithmetic. Just...

Simplify an expression by following the order of operations. Some already know the acronym PEMDAS. But that often gets a little confusing. The teacher demonstrates three steps to simplifying an expression.

Expressions and equations must be worked out in a specific order or the solution will be incorrect. This order of operations has been referred to in several ways, some have called it PEMDAS. Others refer to the order as: group, powers,...

This equation with a variable on both sides and parentheses on both sides seems like it will be hard to solve. Don't despair! It's not as complicated as you might think. Just use the order of operations and take it one step at a time.

Set up a table to keep track of your values as you evaluate an exponential function. Select some values for the table to plug in to the given exponential expression. Then evaluate the expression. Do you see a pattern?

There are a lot of moving parts in this word problem. There are three variables, and then there's writing out an equation. Oh my! The best thing to do is watch this video and take some good notes as the teacher explains each and every...

It is imperative that all your mathematicians know and understand the order of operations. This one skill can make or break young math learners. If they don't understand the order, many wrong answers will be gotten. So take the time to...

What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...

Oh my, there's a variable inside the radical . How will you ever solve this one? The teacher explains step-by-step just how to solve this radical equation. She also shows how to check to make sure the answer is the correct one.

Concept demonstration video [8:26] explains how to find the opposite and the absolute value of a given number. A number line is used to help show the distance from zero.

Learn how to use order of operations to simplify expressions. Several videos, featuring a math teacher and students, offer step-by-step instruction on how to simplify expressions that only involve numbers.

Several video demonstrations offer help with using order of operations to simplify expressions.

Great site for students to learn how to solve linear equations with parentheses. A collection of teacher and student videos will guide you through solving ten different equations.

Do you remember what order to follow when you simplify an expression? To review for the SAT, watch this tutorial for a reminder of the order of operations. [3:18]