The worlds of measurement is a very important one! For this resource, designed for 2nd graders, pupils get to explore measurement by using pencils, markers, and crayons. There is a discussion where kids make predictions regarding what would happen if they took all of the markers, pencils, and crayons and laid them across the room from end to end. Then, they actual measurement takes place. The estimates and real measurement are compared. The lesson is based on the Arthur episode, "Arthur's Lucky Pencil."