Here are some website you can visit:
Raz-kids
http://www.raz-kids.com/main/Login
BookFlix
http://auth.grolier.com/login/bookflix/login.php
BrainPOP
http://www.brainpop.com
MyON
http://www.myon.com/login/
Math
http://www.ixl.com/math/grade-3
Math
http://www.abcya.com/third_grade_computers.htm
Math
http://www.math-play.com/3rd-grade-math-games.html
Math
http://www.funbrain.com/FBSearch.php?Grade=3
Math
http://www.mathblaster.com/parents/math-games/3rd-grade-math-games
Math
http://pbskids.org/cyberchase/
Raz-kids
http://www.raz-kids.com/main/Login
BookFlix
http://auth.grolier.com/login/bookflix/login.php
BrainPOP
http://www.brainpop.com
MyON
http://www.myon.com/login/
Math
http://www.ixl.com/math/grade-3
Math
http://www.abcya.com/third_grade_computers.htm
Math
http://www.math-play.com/3rd-grade-math-games.html
Math
http://www.funbrain.com/FBSearch.php?Grade=3
Math
http://www.mathblaster.com/parents/math-games/3rd-grade-math-games
Math
http://pbskids.org/cyberchase/