Complete counting, matching, more than/less than, predicting, ordering, positioning and pattern recognition activities to develop key number skills. Self Correcting. Each set contains 25 cards. For use with the Smart Tray (sold separately). Contains 25 cards, complete with counting, matching, more than / less than, predicting, ordering, positioning and pattern recognition activities to develop key number skills Includes the use of visual patterns for implicit learning Self-correcting, multi-sensory and engaging Follows a developmental progression Works with the Smart Tray (sold separately)