This book provides information on the basic principles of Montessori education for 3- to 12-year-olds and contains a catalog of equipment, materials, and books for use by adults living or working with children. Information and relevant materials for 3- to 6-year-olds are organized into the following areas: (1) organizing the environment; (2) family life, including care of each other, care of the environment and food preparation and serving; (3) toys and games; (4) blocks and puzzles; (5) earth science; (6) plants and animals; (7) people, including geography and history; (8) language materials; (9) music; (10) art; and (11) geometry and math. Information and materials for 6- to 12-year-olds is organized as follows: (12) cooperation and peace; (13) earth science; (14) plants and animals; (15) geography, history, and biography; (16) language; (17) art and music; and (18) geometry, mathematics, and invention. Two final sections cover parenting and teaching children from birth to 24 years, and an introduction to Montessori education is included. (KB) [An updated version can be obtained at: www.susanart.net]