Amazon.com description: Product Description: Introducing a delightful new addition to our Kinesthetic Learning Tools(tm) series, designed to encourage sensory perception, develop hand-eye coordination, and stimulate learning of basic concepts in children aged 3 to 6. Each 12-page board book, illustrated with adorable full-color, full-page artwork, is enhanced with a sound chip that produces a noise identifiable with a particular animal. As the child slides the five attached animal-shaped pieces in their tracks, he or she learns the basics of counting, adding, and subtracting.