This best-selling trade paperback resource covers the core curricula for grades 3 through 6.

• More than 37,000 kid-friendly definitions that are concise and clearly written
• Over 122,000 synonyms, antonyms, and related words to help enrich vocabulary
• World atlas by the editors of Encyclopædia Britannica with 48 full-color pages covering all the countries of the world

Created in cooperation with the editors of Merriam-Webster, America's leading provider of language information.