Resources
Math Goodies Area
http://www.mathgoodies.com/lessons/vol1/area_rectangle.html
This gives information on area
Math Goodies Perimeter
http://www.mathgoodies.com/lessons/vol1/perimeter.html
This gives information on perimeter
Area Explorer
http://www.shodor.org/interactivate/activities/AreaExplorer/
This gives practice problems on area
Perimeter Explorer
http://www.shodor.org/interactivate/activities/PerimeterExplorer/
This gives practice problems on perimeter