This parent / teacher manual is intended to be used by parents / teachers / children or adults in and out of classroom setting. It a very unique accelerated learning program for preschool through middle school-aged children. There is a CD that goes with each book. With Vocab Tunes children can sing, dance, and play there way through learning to comprehend a 100,000 words in twenty one days. It consists of three books and three CDs. It uses Greek and Latin root words and affixes to provide a strong understanding of words based on meaning of their parts.