College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.

In this video segment from Cyberchase, Harry has a fixed budget for clothing, so he uses algebra to figure out what combination of jackets and pants he can buy with $100. [3:24]

Students can input an equation and have the site solve it for them, complete with steps shown and explanations given along the way. Equations must be simple, first- or second-degree with only one variable. A quick list of rules to follow...

In this lesson, students will be introduced to polynomials. A polynomial is a made up of terms, which are algebraic expressions combined by addition or subtraction. In a polynomial, there is no expressions that involve dividing by the...

The purpose of this task is to identify the structure in the two algebraic expressions by interpreting them in terms of a geometric context, a series of squares filled with dot arrangements. Students are asked to notice a pattern and...

In this task, learners are asked to study the structure of an algebraic expression, draw conclusions, and explain their thinking. Aligns with A-SSE.A.1 and A-SSE.A.1.b.

This tutorial demonstrates how to factor the GCF out of a polynomial expression. An online worksheet is provided for extra practice.

Students learn how substitution works and can practice problems using a substitution calculator.

This activity is designed to help students evaluate numerical expressions by using order of operations. The students will be provided a calendar for the current month of the year. Students will then be provided with a worksheet that...

[Free Registration/Login may be required to access all resource tools.] Evaluate radical expressions and write them in simplest radical form.

The CyberSquad tries to figure out how Hacker's cyberfrog moves when its various buttons are pressed, in this video from Cyberchase.

The laws of exponents are put to action in several examples. The examples demonstrate how to simplify expressions that contain both coefficients and variables.

[Free Registration/Login may be required to access all resource tools.] This lesson covers the product and quotient properties of exponents.

[Free Registration/Login may be required to access all resource tools.] This lesson covers factoring quadratics when the leading coefficient is not one.

[Free Registration/Login may be required to access all resource tools.] Learn to identify when to use the Distributive Property.

In this video from Cyberchase, the CyberSquad must figure out the new input/output pattern on Hacker's larger cyberfrog.

Learn how to solve and explain two-step equations using whole numbers and inverse operations. Complete the lessons and practice activity and then play the interactive games to test your skills.

Simplify algebraic expressions by combining like terms. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This site from WyzAnt explores what simplifying is, as well as how to simplify a variety of algebraic equations. Content focuses on simplifying multiple signs, combining like terms, simplifying multiplication, distributing a number or...

Construct an equation or an inequality that model a given context. Modeling expressions can be quadratic, rational, or exponential.

Solve this problem about hens and sheep and practice your algebraic thinking all at the same time. A solution is provided at this one page website.

Explains, with worked examples, how to simplify expressions which involve parentheses and variables, including how to take a negative through the parentheses.

Understand the meaning of identity using mathematical expressions in this tutorial. Complete the assessment at the end of the video to show understanding of the concept.

Students practice multiple-choice problems with factors and divisibility.