Khan Academy This site has short video tutorials on many subjects. You can search at the top or find the topics listed in the math section.
Wolfram Alpha This is search engine that answers factual queries directly instead of linking you to other websites that might contain the answer.
Math Forum Ask Dr. Math has a great forum for student questions. There is a key word search at the bottom of the page that allows you to narrow down your search. There is also a lot of other "cool" things on the site about math.
Purple Math This website is a resource for Algebra help and more. You can search for a topic and find lessons.
S.O.S. Math This website has a lot of math material. You can search for any topic and the pages have several examples for students to try. The answers remain hidden and once revealed give good explanation.
Math World This is another math website with lots of material. Some of it is geared toward higher levels. However, you can search for any math topic in the website.
Calculator
Desmos Graphing Calculator This free online grapginf calculator lets you plot functions, create tables, add sliders, animate your graphs, and more -- all for free.
Mathway As well as its step-by-step explanations of your algebra homework, Mathway has a great online graphing calculator.
Other
Get the Math There are some cool videos about careers in math. There are also activities that go along with the videos.
A Riddle
An executioner lines up 100 prisoners single file and puts a red or a blue hat on each prisoner's head. Every prisoner can see the hats of the people in front of him in the line - but not his own hat, nor those of anyone behind him. The executioner starts at the end (back) and asks the last prisoner the colour of his hat. He must answer "red" or "blue." If he answers correctly, he is allowed to live. If he gives the wrong answer, he is killed instantly and silently. (While everyone hears the answer, no one knows whether an answer was right.) On the night before the line-up, the prisoners confer on strategy to help them. What should they do?
