10 BOARDS FOR GROUP LEARNING -- This pack of 10 boards features a 560-square (20 x 28) grid on one side and a blank whiteboard on the other. Use them to teach math lessons in groups. ESSENTIAL LEARNING RESOURCES -- Use these whiteboards to teach graphing concepts, area, perimeter and more! Give children their own boards and teach lessons at home or in the classroom. DURABLE AND SAFE -- These dry erase boards are lightweight, durable and easily erasable. They feature soft edges and rounded corners, which means they're safe for little ones to use. USE THESE BOARDS FOR GAMES -- Use these whiteboards for family game night. Keep score, write rules, create maps and more! Use them as a temporary writing surface for any group games! EASILY STORABLE -- The flat design of these dry erase boards fits perfectly on shelves or in drawers. Keep a set with your teaching or homeschool supplies. HANDY SIZE -- These student whiteboards measure 9"L x 12"W and will fit perfectly in school bags, desk drawers and school supply shelves.