This Key to the Yellow Workbook, along with along with the corresponding color Workbook and the required Core Instructor Text, make up Grammar for the Well-Trained Mind: a complete course that takes students from basic definitions through advanced sentence structure and analysis – all the grammar skills needed to write and speak with eloquence and confidence, with the regular review needed for mastery.
Each Key provides not only answers, but also explanations for the parent/instructor, and guidance as to when the answers might be ambiguous (as, in English, they often are).