Tai Chi or Taijiquan, is a Chinese martial art and gentle form of exercise, based on the principle of the interplay of Yin and Yang. It is characterized by slow, graceful, flowing movements which promote coordination, concentration, and mental and physical balance. The “Simplified Yang style” 24 Form is a short routine ideal for beginners. It was created in 1956 with the purpose of popularizing Tai Chi and promoting health.No class Apr 20, May 18. Drop-in $19.05, space permitting.