Year after year, Jan Puffer's tap dance classes draw an eager crowd to Pratt Elementary School. Why tap dance? It's the perfect aerobic activity; you don't have to possess amazing balance, grace, or flexibility to do it; and the clatter created by an entire room full of tap dancers conceals all the grunts and heavy breathing. With beginning and intermediate sections, Puffer is able to make a tap-dancin' fool out of just about anyone willing to part with $44. Puffer is well qualified, as she choreographed productions at the History Theatre, Park Square, and that grizzled matinee queen herself, the Old Log. Check the website for enrollment dates.