Lyons Community School, a new secondary school in Brooklyn, is holding a career exploration day this Saturday (1/12) and is looking for volunteers to present about their fields. The event, which runs from 12:45 to 6 p.m., is open to all New York City middle and high school students; it's free, although the school asks for a $5 donation to defray expenses. To volunteer, contact Natalie Sherwood at 646-894-7984. For more volunteer opportunities in the city's schools, take a look at Volunteer Match and New York Cares. And for more events, check out the Insideschools calendar.