Revision time and a gentle way to ease you into the week.
Have a look through the Powerpoints to revise area and perimeter of quadrilaterals - not because they're hard but because it's easy to mix them up. If you forget, just imaging someone asking you to stand in an area on the playground - would you stand on the edge of where they pointed or in the space? (The space hopefully)
Once you've done that, have a go on the Who Wants To Be A Mathionaire Quiz - The format isn't as good as some but it's ok.
Who wants To Be A Mathionaire
http://www.morethanmaths.com/mathionaire/areaperimetervolume/intro.htm