Young mathematicians will take their skills to the next level with Cuisenaire Rod Workspace Trays! Combine these durable trays with the popular Cuisenaire Rods to practice key math concepts such as addition and subtraction. Each tray is designed to keep rods organized and includes a factor track on the top and side for area models, and comes with 4 double-sided mats that let groups of students use one type of manipulative to learn multiple math concepts. Size: 14.5 x 13 x 14.5 cm. Ages 5+.