Perimetrs

http://www.sheppardsoftware.com/mathgames/geometry/shapeshoot/PerimeterShapesShoot.htm

http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/perimeter_and_area/index.html

http://www.shodor.org/interactivate/activities/PerimeterExplorer/

http://www.shodor.org/interactivate/activities/AreaExplorer/

http://www.funbrain.com/cgi-bin/poly.cgi?A1=s&A2=0&A15=2&Submit=Start+Digging%21

 Perimetrs, Laukums
http://www.mathplayground.com/area_perimeter.html

http://www.mathplayground.com/PartyDesigner/PartyDesigner.html

Garums, Masa (svars)

http://www.bbc.co.uk/bitesize/ks2/maths/shape_space/measures/play/popup.shtml