In Boom™ Cards Christmas Measure Width Centimeters Movable Ruler Digital Resource, learners find the width of holiday items. Kristina P. commented, "This was a great activity to use as an online teaching tool for 2nd graders." This math lesson includes 15 open response questions. With a life-like movable ruler, students measure the object to the closest centimeter, and then type in a response. This measuring assignment can be used for whole group teaching, intervention and center stations.Boom™