Helpful Math Websites
Learn Alberta Spy Guys
http://www.mathexpression.com/ is a site I have not used yet, but it looks like it has clearly presented math lessons.
http://www.coolmath.com/ is a site kids like to play games on, however, there is also a link with math lessons at the bottom of the page.
Ask Dr. Math
http://mathforum.org/dr.math/ is a great site that I have used to find answers to my own math questions.