The Complete Book of Brainteasers provides 352 pages of fun exercises that teach students in grades 3 to 5 key reinforcement in a variety of subjects! Language arts, math, social studies, science, and creative arts are presented a 3 different difficulty levels. It also includes a seasonal unit, a complete answer key, user-friendly activities, and easy-to-follow instructions.Over 4 million in print! Designed by leading experts, books in the Complete Book series help children in grades preschool-6 build a solid foundation in key subject areas for learning success. Complete Books are the most thorough and comprehensive learning guides available, offering high-interest lessons to encourage learning and full-color illustrations to spark interest. Each book also features challenging concepts and activities to motivate independent study, and a complete answer key to measure performance and guide instruction. Read Less