NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Math Assistance http://mathforum.org
Math assistance http://math.rice.edu/lanius/Geom/pol.html
Math Assistance http://www.aplusmath.com/
Math assistance http:/www.multiplication.com/interactive_games.htm
Math Assistance http://mathforum.org/dr.math/