A gret resource for home schooling that focuses solely on mathematics.

High quality lesson plans. If like me, you've searched the web for some good lesson plans you often find yourself confronted by disorganized websites with lots of 'shoddy' lessons as well as lots of annoying pop up advertisements. Not so at Scholstic, these are truly first rate lessons made by professionals for professionals.

Highly recommended.

Quality lesson plans organized by grade level.

A series of increasingly difficult math contest for studetns in junior through high school. The top students on the final test are compete for inclusion in the US Mathmatics Olympiad team. The AMC's website now hosts a calendar of math events.

This site sells many of the stickers, labels and other supplies that teachers frequently use.

Free online math games on a variety of topics covered in high school and middle school including decimal place value, identifying fractions, order of operations as well as arithmetic skills. Play games like 'Decimals in Space' an asteroids tribute or 'Fraction Balls'  or several other good links and start learning math and having fun.

Math worksheets and activiites for students in high school and junior high school.

A warehouse of mathematics that includes interactive and exploratory math demonstrations, math calculators, worksheets and many other math resources.

Free math help online by a community of math teachers and students.

Site dedicated to math teachers, focusing both on math content and pedagogy.

Free online puzzle maker that generates word search puzzles, cryptograms, mazes and several other types of puzzles. This is free online software. You can choose to buy an extended edition but the free online version is quite impressive.

Online classes will help you finally get your degree without disrupting your lifestyle. Complete all courses at your own pace.

www.iplaymathgames.com is a website that contains hundreds of math games and activities, mostly using cards and dice, in an individual download format. All of the games are proprietary and classroom tested in St. Paul, Minnesota public school classrooms by the author, Charles Lund. As you know, Teachers and Students both love math games and activities as a way to reinforce math concepts and build math skills. Most teachers use reprints from workbooks that they have purchased or games that they have found online after an easy search for “free games.” But most times, the deceptive tactic of forcing the Teacher to wade through ads and surveys to get their “free game” leads to frustration and no game.

A national contest open to high and middle schools throughout the USA. The offer a range of difficulty levels.

Great interactive quizzes on geography of various countires including the US, Europe and others.

Thousands of factual education trivia games. Updated daily. - (Read more)

Online teacher forum.

ForestTrailAcademy - Virtual High School allows you to achieve your career goals at your own pace, without interfering with your current work commitments.

Although http://www.artofproblemsolving.com/ has several facets--including online courses that you can take; this site is best known for its forum which is haven for math mavens, typically those types who like to compete in serious Math contest like the AMC's competitions.

Free resources for numerous math topics from addition to algebra to scientific notation. There are videos as well as worksheets and charts to support learning.