Numerical expressions contain numbers and mathematical operations. In addition to numerical expressions, algebraic expressions contain not only numbers but also variable(s). Watch this video as the instructor illustrates several examples...

Set builder notation? What's that? Don't know? Need a refresher? Kind of remember? Well, watch this video and learn all about writing set builder notation. The instructor explains braces, variables, and inequalities to be able to write a...

A straightforward definition of a quotient, this video targets a slightly more advanced audience by using rational expressions to demonstrate a quotient. Make sure your class knows that a quotient is the answer they get when they divide...

A straightforward definition of the associative property of addition and multiplication, this resource could be used to help learners tackle the concept. You might consider giving the link to struggling class members so they can use it...

An inequality in a word problem? And there's a fraction too?! As if word problems weren't hard enough! You can do this, just follow along as the instructor explains each step in solving this word problem.

Algebra makes the world go round; well, not really, but it does make problems easier. An informative YouTube video shows how to write algebraic expressions. Contexts include both mathematical and real-world problems, such as perimeter,...

Perhaps you want to learn about percents in algebraic expressions? Young mathematicians view an informative video that teaches how to write algebraic expressions. These problems all involve contexts involving percents, such as tips,...

Evaluating expressions really is a simple process, so make sure it's easy for your class! Pupils evaluate and simplify an expression of the form (a^2+b^2)/(a+b) for given values of a and b. They see an example of this process through an...

Don't hesitate to evaluate. A short YouTube video demonstrates how to evaluate an expression of the form (a+b)/(c-d). It shows the substitution, evaluation, and simplification steps given values of a, b, c, and d.

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...

Expand your understanding of the distributive property. Scholars learn how to apply the property to algebraic expressions by watching a video. They expand expressions with their newfound knowledge.

Expressions have value. A short video shows individuals how to evaluate algebraic expressions. They see how substitution lets them determine the value of an expression for given values of the variables.

Letters can be numbers, but numbers can't be letters. Viewers learn how to use variables in algebraic expressions. It shows the use of variables in conjunction with different operations.

There will be two variables in this equation since a straight line means a linear equation. Writing the equation in slope-intercept form means there is an x-value and a y-value. So let's watch this video and see what it takes to use the...

Find the area of several rectangles that have been given monomial values. When the rectangles are put together, the sides are added together to form a binominal value. Now use the formula for area to multiply the two binomials. Use the...

Given a monomial and a polynomial, rewrite the expression as a rational number. This is not as confusing as you might think. First is to make the monomial a rational number by giving it a denominator. Once that is done, numbers can be...

Being able to translate words into a mathematical expression is an important skill, but being able to go the other way is just as crucial. Watch as the teacher takes a simple algebraic expression and demonstrates how to translate that...

Given an algebraic expression, write a word problem. Usually it's the other way around where you have a word problem and need to write an algebraic expression. But, this is a good skill to have because it would mean that one has a good...

An informative video on the distributive property, this resource could be used to help promote understanding of the concept. The instructor defines the distributive property and demonstrates how it works with variables. Show this video...

An informative video on the distributive property, this resource could be used to help promote understanding of the concept. The instructor defines the distributive property and demonstrates how it works with variables. Show this video...

If your algebraic expression is a ratio of two polynomials then you have a rational expression. Find out what that might look like.

An astrobiologist and a physicist explain how mathematics is universally critical to helping understand nature and the cosmos in this video from KAET. In the accompanying classroom activity, students discuss the mathematics in the video,...

Watch network engineer Diana Tootle explain how she uses math in her work in this video from KAET. In the accompanying classroom activity, students watch the video and then complete an activity involving an aspect of math that Ms. Tootle...