CANTON -- Ann Heidenreich will teach a tai-chi class for beginners at the Yoga Loft in Canton from 2 to 3 p.m. on Tuesdays starting January 10 through March 13. Students will learn the principles of tai-chi ch’uan and the postures and transitions of the first section of the Yang-style short form. For more information or to register for the class, please call 379-0959.