Use this website to help you hone your critical thinking and math-problem solving skills. Learn what "Negation," is and how it applies when you are working on mathematical problems and sentences.

Add and subtract rational expressions like a pro after you use this site. Finding common denominators is made easy with this tutorial. Try the example problems to test your knowledge, then check the solutions. The 'Topic Index' page...

Use this site to learn how to simplify rational expressions when multiplication is required. You can practice what you have learned using the problems provided.

Solving a system of linear inequalities is shown to be as easy as solving a system of linear equations! An example is explained before students are given several problems to complete on their own. Complete explanations of these are...

Here is a partial list of theorems, postulates, and properties.

How can trigonometry be used to find the area of a triangle or parallelogram? Does the triangle need to be a right triangle, and how accurate can the results possibly be? The answers to these questions are found here along with several...

This site contains great information on adding and subtracting complex numbers. Several examples are given, along with a brief definition. Includes link to a graphing calculator tutorial.

Three examples are used to demonstrate solving a system of linear equations algebraically using addition and subtraction. The examples cover different situations that occur with the coefficients of the variable terms. Includes several...

The mathematics session investigates arc length and radian measure. The tutorial consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes an activity that discovers radian...

An introductory look at the definition of an inverse function, the notation used for inverse functions, and tests used to determine whether a function will have an inverse. Several examples are provided for the student to scroll through...

The method of graphing to solve a system of linear equations is demonstrated on this site. Students are shown how to graph the lines, then shown how to find the solution.

The educational resource consists of interactive games and puzzles that investigate geometry concepts. Some concepts included are angles, quadrilaterals, and circles. [Requires Java Plugin.]

The mathematics session investigates reference angles and triangles. The tutorial consists of class notes, examples, and practice problems with solutions. The teacher resource includes a worksheet on the construction of skateboarding ramps.

This tutorial demonstrates how tree diagrams are constructed and shows how to calculate the probability of an event using a tree diagram. There are links to a lesson, practice page, and teacher resource pages with useful tips.

A collection of lessons, practice activities, and a teacher resource for reviewing exponents and the various rules associated with them.

Use this site to learn how to divide data into quartiles in this tutorial. You'll need a calculator to do the practice problems. The teacher resource page contains a warm-up exercise for use before a quartile lesson.

The somewhat tricky differences between mutually exclusive, non-mutually exclusive, independent, and dependent events are defined here. Common items such as coins, colored cubes, and a deck of cards are all part of the easy-to-understand...

Two hands-on lab activities for instructors to use when teaching about the coordinate graphs of the sine, cosine, and tangent functions derived from a unit circle. The graphs of the reciprocals of the three functions are investigated....

The glossary consists of mathematical terms used in geometry. Definitions and examples are included. The resource is intended for teacher use only.

Learn and practice the concept of sample spaces. Features include a teacher resource page.

The glossary consists of mathematical terms used in algebra and trigonometry. Definitions and examples are included. The resource is intended for teacher use only.

The glossary consists of mathematical terms used in integrated algebra. Definitions and examples are included. The resource is intended for teacher use only.

This educational resource consists of interactive games and puzzles that investigate algebra and trigonometry concepts. Some concepts included are functions, quadratics, and trigonometric graphs. [Requires Java Plugin.]

The lesson discusses solving and graphing polynomial equations of higher degree. The resource consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes an activity that...