In this Perimeter and Area Activity, students will build their very own spooky monsters based on the given measurements. It's creative, hands-on, and Common Core aligned; the perfect math craft for any 3rd grade, 4th grade, 5th grade, or home school class. Use it as a culminating activity for your area & perimeter unit, a low-prep math center, or a fun Halloween math project!This activity was created with differentiation in mind. Included are spec cards for perimeter, area, and both perimete