White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
This is a website with videos of teachers doing the alternative algorithms for math. http://mb.msdpt.k12.in.us/Math/Algorithms.html
This is a website that has virtual Everyday Math supports (virtual manipulatives, virtual dice, etc.) http://www.center.k12.mo.us/edtech/everydaymath.htm
List of games for Everyday Math http://edweb.tusd.k12.az.us/ekowalcz/math/elementary_web_sites.htm
http://everydaymath.uchicago.edu/students/index.shtml
http://www.auburn.wednet.edu/everydaymath/evrydaymathhome.htm
http://www.auburn.wednet.edu/everydaymath/games46/gamcorr46.htm
FISHY FRACTIONS! Practice adding and subtracting mixed numbers and proper fractions with unlike denominators. Try comparing fractions! Click on MATH, then scroll down and click on FISHY FRACTIONS! Enjoy! FISHY FRACTIONS!
Racing fractions! Add and subtract fractions while racing around the track. Great practice that gradually gets more difficult as the levels are cleared! Racing Fractions!