This 22 PowerPoint presentation relates area to perimeter, shows how area is square units and how they can be counted to find area. It also contains my phenomenal Perimeter and Area song to the tune of Mary Had a Little Lamb. It then moves into how area can be found using multiplication by demonstrating how the square units are like arrays. Finally, there are several test prep questions at the end to help prepare students for a test.
See videos, songs, and other activities I use at
http://tricksoftheteachingtrade.blogspot.com/2012/03/awesome-area.html