This product includes 12 task cards perfect for math rotations or centers to practice determining the area and or perimeter of a given shape. Using QR codes is optional, but it makes them self checking, fun and engaging for students. An answer key is provided for those of you who prefer not to use the QR codes to check. Just print, laminate, and cut out and you are ready to use them. There is also a cover sheet for the container you store them in. These can also be used as an assessment.