Crazy 4 Math has a cool contest going. You enter online and here are some details:
Kids, share your creative math ideas! Describe how you use math in any activity you love to do – a sport, game, craft, hobby or anything else. Send in a description of the activity and how you use math. You can also include a drawing or diagram. Class entries are also accepted. All participants will receive an MP3 of Googol Power’s new song “Crazy 4 Math” when you enter. There are many other great prizes to be won. Win or not, you’ll have… .
They also have lessons, worksheets and other freebie’s on their site. Go check it out!