Systematic, progressive activities. Each card is pre-reading (without written words). Contains 25 cards, complete with matching activities to develop visual perception and critical thinking. Topics include: things that go together, patterns, animals, colors, matching, habitats and inference. Self-correcting, multi-sensory and engaging. All cards are pre-reading and language free. Details:10.6" x 8" x 1" package sizeContains 25 cardsFor use with the Smart Tray (sold separately)For ages 3 and up