This activity includes three different activities for teaching area and perimeter. The first activity requires students to find the length of the missing side of a polygon by using the provided perimeter. The next activity can be used as a pre-test/post-test or can be used as a check for understanding. The final activity is an application activity that can also be used as a performance based assessment. This activity has students design a zoo by placing different animal enclosures and buildings. Students must then use grid paper to determine the area and perimeter of each enclosure.