For an entire week, the American Rhythm Center (ARC), the collaborative dance/arts facility operated by the Chicago Human Rhythm Project (CHRP), invites everyone to its Free-4-All dance classes.

MERRILLVILLE | Parks officials will offer a free demonstration class in Chicago Style Steppin from 6:30 to 8:30 p.m. Monday at Pruzin Community Center, 5750 Tyler St.