This series introduces students to vocabulary, largely through the study of Greek and Latin word parts, and words of foreign origin. Lessons are varied in format but present new words and provide games, puzzles, and reinforcement activities to build vocabulary and keep students interested, all while emphasizing the learning of words in context and through etymology. Each book is meant to last a semester, contains 15 lessons (estimated to take 20 to 30 minutes per week), and includes cumulative reviews to increase student retention. The first three grades focus on Latin word parts, the fourth on Greek word parts, the fifth on words borrowed from other languages, and the last on native English words. Teacher editions include the entire student worktext with all the answers given in red. Levels A-C were revised in 2008; levels D-F have been revised in 2009.
