Students gain an understanding of length, perimeter and area—with hands-on activities that cover customary and metric units! Our ready-to-use center has 10 different self-directing activity cards that are write & wipe and reproducible, plus all the tools to complete each activity—from using rulers to measure the lengths of different body parts to finding the size of real-life objects with measuring tape! You also get a freestanding reference chart…plus a guide with reproducibles