Concert. The Best of Chicago a capoella: A 20th Anniversary Celebration. 8-9:30 p.m., Logan Center, 915 E. 60th St., 773-702-2787, $12 students, $25 seniors, $30 general admission, $38 preferred seating. Folk, religious and pop songs to kick off the group’s third decade. Buy tickets at chicagoacappella.org.
Family Program: Junior Archaeologists. 2-4 p.m., Oriental Institute, 1155 E. 58th St., 773-702-9507, $5 members, $9 non-members. Pre-registration is required. Children and parents experience a simulated archaeology dig. For ages 5-12, accompanied by an adult. To register at oi.uchicago.edu/order/classes.
Junior Archeologists. Children and parents have a chance to dig into our simulated excavation in the Oriental Institute’s Kipper Family Archaeology Discovery Center. This program also includes an interactive guided tour of the galleries. Suggested for ages 5 to 12. Children must be accompanied by an adult. Oriental Institute, 1155 E. 58th St., 2-4 p.m., $5 per participant with membership/ $9 for non-members, 773-702-9507.
Tot Lot. 9 a.m.-noon, Hyde Park Neighborhood Club, 5480 S. Kenwood Ave., email@example.com, classes are $9 drop-in, $45 for a 10-session pass or $65 for a monthly pass. This class is intended for children 0-4 and their caregivers or parents to get together on a regular basis to learn, play and benefit from one another’s company.