- Jam-packed with hundreds of curriculum-based activities, exercises and games in every subject, Brain Quest Grade 3 Workbook reinforces what kids are learning in the classroom. The workbook"s lively layout and easy-to-follow explanations make learning fun, interactive, and concrete. Plus it"s written to help parents follow and explain key concepts. Includes spelling and vocabulary, parts of speech, reading comprehension, odds and evens, magic squares, multiplication tables, Brain Boxes, and much more.