This set includes 20 task cards, 3 challenge cards & a student recording sheet. It covers area and perimeter of rectangles, squares, and figures made up of square units. The first 10 cards ask students to find either the area or perimeter. The last 10 ask students to find both the area and perimeter. The challenge cards are a great way to take it to a higher level. These cards directly align with the Georgia Performance Standards for 3rd grade. An answer key is provided.