1) Homework Hub is a great site for getting assistance at home:
2) 5th Grade Science Websites: http://el014.k12.sd.us/5th%20Grade%20Science%20Websites.htm
3) Sites for Reading help: http://www.readingresource.net/websitesforkids.html
4) For help and practice with math facts:
http://www.multiplication.com/interactive_games.htm or http://www.themathlab.com/natural/natural_.htm