http://ronblond.com/MathGlossary (Ron Blond's applets)
KE 9 Math Links
http://www.sciencekids.co.nz/
http://www.math-play.com/
http://www.visualmathlearning.
New Links on Transformations
http://www.bbc.co.uk/schools/mathsfile/shockwave/games/bathroom.html
http://www.learner.org/courses/teachingmath/grades3_5/session_02/swf/c02_s02_congruent_shapes.swf
http://www.primaryresources.co.uk/online/simpleshapesort.swf
http://www.bbc.co.uk/keyskills/flash/kfa/kfa.shtml
http://www.oswego.org/ocsd-web/games/bananahunt/bhunt.html