In what case did the Supreme Court rule that students do not lose their First Amendment rights at school?

The Supreme Court ruling in Tinker v. Des Moines Independent Community School District established that students do not shed their First Amendment rights when they enter a school environment. This landmark decision underscored the principle that students are entitled to free expression, as long as it does not substantially disrupt the educational process. The case involved students who wore black armbands to protest the Vietnam War, and the Court determined that their symbolic speech was protected under the First Amendment.

This ruling is significant as it affirms the idea that freedom of speech extends to students and schools cannot impose blanket restrictions on this right. It set a precedent for future cases regarding student speech and demonstrated the balance that must be maintained between maintaining order in schools and upholding constitutional rights.

In contrast, the other cases listed primarily deal with issues not centered around student free speech in schools. Lemon v. Kurtzman addresses the separation of church and state, Rosenberger v. Rector deals with free speech in the context of funding for student religious publications, and Engel v. Vitale focuses on the prohibition of school-sponsored prayer, which does not directly address the rights of students to express themselves.