Transformations
http://www.mathsisfun.com/geometry/transformations.html
Icy turns, flips and slides
http://www.harcourtschool.com/activity/icy_slides_flips_turns/
Robopacker
http://www.eduplace.com/kids/mw/swfs/robopacker_grade4.html
Transformation golf
http://www.mathsonline.co.uk/freesite_tour/gamesroom/transform/golftrans.html
http://www.coolmath.com/tesspag1.htm
Tesselations Interactive Site
http://www.shodor.org/interactivate/activities/Tessellate/
http://www.pbs.org/parents/education/math/games/first-second-grade/tessellation/
http://www.mathcats.com/explore/tessellations/leaveisland.html