The set's 15 numbered cards feature math exercises that begin with basic counting, gradually work up to addition and subtraction, and end with a final page featuring multiplication by two.
Children fit the appropriate plastic tiles into the answer squares on the worksheets.
The exercises are cleverly self-correcting as the tiles sport tiny pegs, each with an individual code. Once kids understand that the number of pegs on each tile has nothing to do with the numeral on its face, they can focus on numeral identification and the exercises at hand. The tiles fit neatly into labelled slots in the storage area of the case, and younger children who are not ready for the product's more advanced math exercises can consider this an activity in and of itself. Preschoolers will have fun matching the number tiles with the number labels and sorting the tiles into the tray, as well as working with the first few counting cards of the set. However, the math exercises are probably most appropriate for children at the K-1 grade level, as children work with numbers beyond 10 as well as the concepts of addition and subtraction.