Videos for kids

http://www.kideos.com

Movie clips about different topics

http://www.movieclips.com

Movie clips with math problems

http://www.math.harvard.edu/~knill/mathmovies/

Resources, games, dictionary, worksheets, puzzles

http://www.mathisfun.com

Math jingles

http://harcourtschool.com/jingles/jingles_all/jingles_menu04.html

Math games by concept

http://cmweb.pvschools.net/~sweigand/

Math Terms Definitions

http://www.amathsdictionaryforkids.com/

Make flash cards

http://www.studystack.com/Math

Create on-line quizzes and practice problems

http://www.thatquiz.org/

Interact with art and create your own art.

http://www.nga.gov/kids

Build a cell phone, virtual surgery, build machines, crash scene simulations

http://www.edheads.org

Current events

http://www.timeforkids.com

Physics Games

http://www.physicsgames.net