These colorful sets of puzzle cards provide children with an excellent introduction to basic anatomy, spelling, vocabulary, shapes, mathematics, number recognition, counting, ABC's, beginning sounds, upper and lowercase, colors, rhymes, and opposites. Each set of puzzle cards are self-correcting as no two puzzle cuts are the same. Each set of puzzle cards include 20-30 puzzle cards, for ages 3-7 years. This massive set includes ten complete, individually boxed sets of Match It! puzzle cards. Titles include: 3 Letter Words, ABCs, Colors, Counting, Letters, Numbers, Opposites, Rhyme, Shapes, and All About Me.