This comprehensive supplemental resource for the classroom or studio provides specific strategies to develop sight-reading skills with individuals or large group ensembles. Violin, viola, cello, and bass students will develop consistent reading habits and improve sight-reading skills. Using a unique nonsequential unit format, the materials are flexible and can be individualized. Unison exercises, pre-tests, progress evaluations, and seven musically diverse three-part ensembles provide extensive practice and assessment of reading skills in a realistic musical context.