To change the classroom dynamics and over all performance is a tricky thing, especially after the start of the school year!
Every classroom has a peer leader (often more than one). While you're the teacher, the peer leader plays a powerful role and has great influence on the educational outcomes of all students in the class, even those that do not follow that person. These leaders influence you, you must respond (good or bad), to their behaviors and actions and that has an impact on all students.
https://thebeardedmathman.com/podcast/E20
