In a room in East Oakland, Calif., photos of children are projected on a screen. “Who is that?” asks Briana Moore, a licensed clinical social worker in private practice and a master trainer for the East Bay Agency for Children’s Trauma Transformed program. “Bill Clinton,” responds one of the 20 employees of the East Oakland Youth Development Center (EOYDC).

Eighteen-year-old Kia Hanson has always enjoyed her time as a youth leader at the East Oakland Youth Development Center (EOYDC). She’s worked mostly with five- and six-year-olds since she began in 2016. Recently, she tapped into new skills, especially if the kids were having a meltdown. Kia Hanson “If they’re off, we ask them, ‘What’s wrong?’ ‘Do you want to talk about anything?’,” she explains. “Basically asking before assuming they’re mad at the world for no reason.” What made the...