Ages 5 to 7 years. Kumon Word Games workbook was developed to allow children to practice writing words and learn new vocabulary by completing fun and challenging word puzzles. The words used in these puzzles were chosen with the age range in mind and covers words your child should be familiar with but, may not know how to write yet. The enjoyable word puzzles will provide your child practice writing new words while developing his or her problem-solving skills. This workbook includes alphabet review activities, word search puzzles, word maze puzzles, crossword puzzles, and word chain puzzles, all presented in a progressional order that will allow your child to learn new words with ease.