I teach second grade, tech free would work in my class! Don't need it for testing. Hands on practice with a partner is more sociable. That said, are students in a tech-free school natural and relaxed because the school is tech free or because they are lucky enough to come from homes where screen-time is monitored and moderated? Perhaps families that monitor screen time might also gravitate toward schools that are tech-free thus these kids could already be less anxious and stressed.