Scholastic Dictionary of Spelling
Scholastic Pocket Dictionary of Synonyms, Antonyms, Homonyms
Merriam-Webster Elementary Dictionary
Science Dictionary for Kids: The Essential Guide to Science Terms, Concepts, and Strategies
Math Dictionary: Homework Help for Families
How to Be Good at Math: Your Brilliant Brain and How to Train It
Merriam-Webster's Dictionary for Children, Newest Edition, Trade Paperback
Merriam-Webster Children's Dictionary: Features 3,000 Photographs and Illustrations
Amazing Visual Math