Virtual Nerd: What Is Place Value?

Instructional video provides an introduction to the absolute value function. [5:34]

Prepare for the SAT by reviewing how to simplify expressions using the distributive property. Watch this video for an explanation and examples. [5:45]

To simplify radicals, review the product property of square roots. This video will explain the concept along with examples. [4:15]

How do you take a square root of a fraction? Watch this tutorial on how to use the quotient property of square roots to find the answer. [3:50]

Take a look at this tutorial to learn about line segments, how to name them, and what the midpoint of a line segment is. [3:13]

Identity equations are equations that are true no matter what value is plugged in for the variable. Learn all about identity equations by watching this tutorial. [4:10]

Take a look at this tutorial to learn about how an angle is formed, how to name an angle, and how an angle is measured. [4:45]

The Law of Cosines helps solve some triangle problems. This video explains several versions of the law of cosines and what they are used for. [9:22]

Constants are parts of algebraic expressions that don't change. Watch this tutorial to see what a constant looks like and why it doesn't change. [1:43]

Watch this tutorial to learn about weighted averages, a special type of average that allows you to give special weights to the different values in your average. [3:06]