White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
This site has a timed multiplication facts test. You can set the timer yourself and it will check the answers for you when you are finished. Great for practice! http://www.mrmyers.org/Math_Mania/ttmult.html
Mathemagician.... that totally cool video that I showed in class on the first day of school! http://www.math.hmc.edu/~benjamin/mathemagics.htm
Fun online math (and other) games to exercise your brain. http://www.classbrain.com/
Check out the Hubble telescope website. Math and Science go hand in hand and the disasterous error in the original shaping of the telescope's mirror reminds us that details are important, and a millionth of an inch can make a difference! http://hubblesite.org/
Astronomy Picture of The Day website. Cool pictures! Thanks to Spencer Pennington! http://apod.nasa.gov/apod/archivepix.html
Brick breaker game. http://www.abcya.com/brick_breaker.htm
Math Facts website for timed math fact practice. You must have a username and login to play. http://www.amflogin.com
Link to CompassLearning Odyssey. Username and password required. If you have forgotten yours, see Mrs. Souter. http://compass.deercreek.k12.ok.us/childu/index.html
Printable blank coordinate grids. Choose numbered or not numbered, multiple or one per sheet. http://themathworksheetsite.com/
Website that gives clear instruction for solving different types of algebra word problems. http://www.onlinemathlearning.com/algebra-word-problems.html