Vocabulary: Level D Student Text (3rd ed.) teaches Greek word parts and discusses the contribution of Greek to modern English vocabulary. The educational materials emphasizes the importance of proper word selection for effective writing and seeks to expand students’ vocabulary.

Vocabulary: Level D Teacher's Edition (3rd ed.) provides overprinted answers of the Student Worktext for convenient evaluation. The educational materials presents new vocabulary in each lesson and provides word games, puzzles, and reinforcement activities help students build and retain vocabulary.