Connected Math Textbook website and help http://connectedmath.msu.edu/#
website for McDougal-Littel Textbook -games and practice http://www.classzone.com/cz/books/msmath_1_na/book_home.htm
Fun Brain http://www.funbrain.com/
AAA Math http://aaamath.com/
Interactive Factor Game Factor Game
Interactive Product Game Product Game
National Geographic for Kids http://www.nationalgeographic.com/kids/
Olympic math game http://www.mathplayground.com/olympic_math1.html
NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html