Naming Points http://www.shodor.org/interactivate/activities/simple coordinates
Coordinates Game http://www.shodor.org/interactivate/activities/generalcoordinates/
Interactive Ordered Pairs http://www.mathwarehouse.com/ordereded-pairs/interactive-ordered-pairs.html
Slope game http://hotmath.com/hotmath_help/games/kp/kp_hotmath_sound.swf
Functions Machine http://www.shodor.org/interactivate/activities/FunctionMachine/