Here are a load of area and perimeter games.
Remember - area is the space inside - measured in cm2 or m2
perimeter is the distance around the outside of a shape - measured in cm and m.
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/perimeter_and_area/index.html
area and perimeter things
http://resources.woodlands-junior.kent.sch.uk/maths/measures/measure.html
BBC one
http://www.bbc.co.uk/schools/gcsebitesize/maths/geometry/areaandperimeteract.shtml