Here are a list of precedents for the case.
Tinker v. Des Moines (1969): Students do not shed their constitutional rights at the schoolhouse door. And the Court has repeatedly emphasized the need for affirming the comprehensive authority of the States and of school officials, consistent with fundamental constitutional safeguards to prescribe and control conduct in the schools.
West Virginia Board of Education v. Barnette (1943): The Fourteenth Amendment, as now applied to the States, protects the citizen against the state itself and all of its creatures-Boards of Education not excepted.
Fuentes v. Shevin (1972): The length and consequent severity of a deprivation is not decisive of the basic right to a hearing of some kind.
Wisconsin v. Constantineau (1971): The Due Process clause forbids arbitrary deprivations of liberty.
Epperson v. Arkansas (1968): By and large, public education in our Nation is committed to the control of state and local authorities.
Grannis v. Ordean (1914): The fundamental requisite of due process of law is the opportunity to be heard.
San Antonio School District v. Rodriguez (1973): Education is not a right protected by the Constitution.