50 Puzzle Pack PC MAC CD thinking reasoning spatial nursery rhyme J. Piaget game Type: Children Platform: Windows/Mac Publisher: Innotech Released: 1996 Media: CD 50 PUZZLE PACK contains 50 puzzles with three levels of difficulty for children ages 3 to 8. These puzzles challenge young learners to develop their thinking, reasoning and spatial awareness skills. Designed by Dr. Gary Woodill, Professor of Early Childhood Education at Ryerson Polytechnic University, and Dr. Karen Anderson Sociology Professor at York University, Toronto, 50 PUZZLE PACK is based on the early childhood learning curriculum established by the renown Swiss psychologist and educator, Jean Piaget. For Windows (32-bit Systems) / Mac (Power Macintosh: OS 9 or Below) [*Please review compatibility/platform sections in 'What You Get']