Answer:
Tinker v. Des Moines (1969)
Bethel school v. Frazer (1971)
Explanation:
Two prominent Supreme court rulings dealt with the first amendment rights of students in public schools. For example, in the case of Tinker v. Des Moines (1969), an expression of the freedom of speech was challenged. In that case, a number of students were suspended for wearing black armbands that protested the American involvement in the Vietnam war.
In the Bethel school case, a high school student was disciplined over what was a speech filled with sexual connotations. The court ruled that the official could discipline the student for such a behavior. The supreme court cited this as a matter of the school authorities being loco parentis.