Mathebook.net is an online Free Learning website full of fun. This website is fully interactive and will allow kids to practice and learn math with ease.
How to develop a circle equation in algebraic form when the circle touches the horizontal x-axis and learn how algebra is used in geometry to derive the equation of a circle in algebraic form in mathematics.
Math Warehouse offers numerous interactive Flash-based activities for middle school or secondary students. In addition to the interactives, Math Warehouse provides worksheets and links. The interactives provide ways to experiment with concepts followed by practice problems.
While many math geeks out there may have been teased for their love of numbers, it's math that makes the world go round, defining everything from the economy to how the universe itself operates. You can indulge your love of mathematics in these great lectures and lecture series. Some are meant to review the basics and others will keep you on the cutting edge of what renowned researchers are doing in the field, but all will help you expand your knowledge and spend a few hours enjoying a topic you love.