http://www.visualfractions.com/EnterFraction.html

http://www.visualfractions.com/EnterCircle.html

http://www.visualfractions.com/CookiesF.html

http://www.visualfractions.com/FindGrampstrict.html

http://nlvm.usu.edu/en/nav/frames_asid_104_g_1_t_1.html - What fraction can you see?

http://pbskids.org/cyberchase/games/equivalentfractions/index.html - Help Melvin the Magician.