Math Vocabulary for Kids http://www.amathsdictionaryforkids.com
http://www.aaamath.com
Fractions http://www.visualfractions.com
Interactive Math Classroom http://www.interactivemaths.net/node/348
Fractions http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/fractions/