“When you’re doing service, ask yourself ‘what do I want to get out of this?’” Barnes said. “You shouldn’t feel like you have to travel halfway across the world to do service when there are people right outside your door who could use your help.”

The Honor T/CSF club started a program this month to provide tutors for middle-school students at Martin Luther King (MLK) Academy in Marin City. The program was organized by junior Lauren Killingsworth,...