A whole-school approach to [Social-Emotional Learning] means that all the adults in the building — not just teachers and principals, but lunchroom monitors, bus drivers, librarians, and specialists — have to be invested and on the same page with SEL. In their own interactions, as well as in their work with students, adults should model the type of behavior they want their students to exhibit . . .
So while regular professional development can teach adults the nuts and bolts of integrating SEL into the school day, one more step is crucial to a successful program: Ensuring that adults develop their own social-emotional capacities. “Our approach has shifted towards supporting the adults’ own social emotional needs, addressing the stressors they may be experiencing as professionals in education.
—Rebecca Bailey, as reported by Leah Shafer, “What makes SEL work?” on Usable Knowledge
More on the need for adults to have the capacity for modeling self-control: Learning and Teaching Self-Control