This sturdy wooden stacker is jam-packed with exciting details that appeal to a child's natural curiosity about colors, shapes, and numbers. Encourage early math skills with the 55 shape pieces and 10 number tiles ("One rectangle plus one rectangle makes two rectangles. If we add one more, how many rectangles do we have in all?"), or help develop word recognition by identifying the shape names printed on the board and the numbers spelled out on the back of the tiles.