Magnetic geometric shapes reinforce modeling algebraic principles. Creates concrete models right on your whiteboard. Supports whole—class demonstrations and hands—on student work. Includes 72 geometric shapes in a variety of sizes. Features write & wipe surface for your own labels. Largest piece measures 12.5 cm x 12.5 cm. Grades 6+.Details:Geometric shapes reinforce modeling algebraic principleCreates concrete models right on your whiteboardIncludes 72 geometric shapes in a variety of sizesFor ages 11 and up