Choral rounds have been used for recreational singing for hundreds of years and are effective tools for your students to understand harmony, expand their vocal ranges, and experience a choral sound that is easily accessible to them. Music educators can satisfy state and national music standards with a carefully crafted choral curriculum, bringing choir back into the daily classroom schedule. By using rounds as warm-ups, you can teach vocal technique, music theory, application, appreciation, and history, as well as increase your singers' understanding of scales, intervals, modes, dynamics, and terminology. Each round in this collection has instructions on the musical focus and implementation of the song. Additional comments give insight into the historical background or practical tips for a successful performance. Several rounds were intentionally included for adolescent boys with a limited range. Warming Up with Rounds includes both familiar and rare rounds that are easy and challenging, as well as serious and fun. Music teachers and their students will enjoy discovering the secrets that choral rounds offer and ultimately feel a great sense of accomplishment when they make beautiful, harmonious music together.