The Johns Creek Fire Department wants teens to know how to take life-saving measures in emergency situations. On Saturday the department will hold a “CPR for Teens” class, part of the American Heart Association’s Heart Ready program.

The class, for ages 12-18, starts at 2 p.m. at the at the Northeast/Spruill Oaks Library, 9560 Spruill Road, Johns Creek. Information: 770-360-8820.