with instructor Cheryl Crews. Tai chi, short for t'ai chi ch'üan, is an internal Chinese martial art practiced for both its defense training and its health benefits. The term taiji refers to a philosophy of the forces of yin and yang, related to the moves. Registration is required by calling 609-967-7155 or stopping by the circulation desk. Avalon property owners may register beginning December 4. All others may register beginning December 18.