Why was justice black so concerned about the court's decision in the tinker case?

Justice Hugo Black was concerned about the court's decision in the Tinker case because he believed it undermined the authority of schools to maintain order and discipline. He feared that allowing students to express themselves through symbolic speech, like wearing armbands, could lead to disruptions in the educational environment. Black emphasized the importance of upholding the First Amendment while also recognizing the need for educational institutions to function effectively. He was worried that the ruling could set a precedent that weakened the ability of schools to manage student behavior.