In this tutorial, students learn how to do prime factorization by a few different methods, including factor trees and factor stacks. The exercises work their way up from 2-digit numbers up to 5 digits. Includes practice problems.

Demonstrates how to multiply numbers when negative signs are involved and explains the rules to memorize. Includes practice exercises.

The goal is to get a single square to be 2048. Get two of the same number next to each other to add them together. Use the arrow keys to add squares together.

Short tutorial explaining how to divide fractions by whole numbers.

This prealgebra tutorial reviews what exponents are and how they work.

This prealgebra lesson explains the first rule of exponents.

A quick tutorial on the basics of the Cartesian (rectangular) coordinate system.

Learn how to plot points on a coordinate graph.

Learn how to graph lines using intercepts.

A quick, four-part review of graphing lines.

Review with this final overview of factoring polynomials.

Use this tutorial to find the slope of a line from the equation.

Study this tutorial to find out how to use determinants and Cramer's rule to solve 2x2 systems.

Click on the 'Give me a problem!' button for an equation. Solve for x in the equation using pencil and paper, then check the answer. This is an example equation: 10x - 486.6 = -9. The solution is given as a fraction.

A quick tutorial on graphing linear inequalities.

You are presented with an outline map of Africa and you must place each country in its correct position. It clicks into place if you're in the right spot. You may want to start with the practice mode which has the shape outlines of the...

You are presented with an outline map of Europe and you must place each country in its correct position. It clicks into place if you're in the right spot. You may want to start with the practice mode which has the shape outlines of the...

You are presented with an outline map of Asia and you must place each country in its correct position. It clicks into place if you're in the right spot. You may want to start with the practice mode which has the shape outlines of the...

For this game, you must guide a cube along a path of squares in order to reach the red square. Along the way, you must touch every individual square.

A large collection of tutorials covering concepts in addition, subtraction, multiplication, division, and fractions.

A gallery of complex polyhedra with descriptions and characteristics.

An interactive for working with ten frames or a variation of one. Choose characters or shapes for counters and lay them out in your frame. There are tools for duplicating, rotating, drawing, and deleting, as well as for typing an...

Interval notation explanation, examples, and independent practice.

Explanation and examples for solving population growth problems.