In the movie Lean on Me, Mr. Clark is hired as principal of Eastside High School after students physically attack a teacher after school. The incident highlights the school's problems with violence and disorder. As new principal, Mr. Clark uses strong, forceful measures to re-establish a sense of order. Many parents and community members disapprove of his measures. For example, one day out of the blue, Mr. Clark expels hundreds of students with reputations as gang members or drug dealers. He does not go through the official protocol of issuing out warnings, suspensions, and other less harsh disciplinary methods. Instead, he unilaterally decides to bypass those processes. Parents of the effected students begin advocating for Mr. Clark's removal. Another controversial method he uses is to lock down the entire school building with chains in order to keep drug dealers out.
Mr. Clark's transformation in the movie is that he becomes a less harsh disciplinarian, and grows into a paternal figure with a gentle side. He begins not only to discipline wrongdoing, but also to counsel troubled students and to exercise mercy toward them rather than strictly punitive measures. He wins the students over and creates a school culture of pride and respect. His character goes from being a fairly one-dimensional hard-handed tyrant to a more complex, empathetic, nuanced character. By the end of the movie, Mr. Clark is comfortable openly expressing emotions such as sadness, concern, and compassion.
How did Joe Clark in "lean on me" helped students to succeed?