Educator Open House. 5:30-7:30 p.m., DuSable Museum of African American History, 740 E. 56th St., 773-947-0600, dusablemuseum.org, free. For all educators, Pre-K through 12. Visitors can earn three CPDUs. R.S.V.P. at dusablemuseumeducatorsopenhouse.eventbrite.com. For more information, contact Erica Griffin by sending an e-mail to email@example.com or calling 773-947-0600, ext. 290.