Which case established that students do not lose their First Amendment rights at school?

The correct choice, Tinker v. Des Moines, is significant because it set a precedent for the protection of students' First Amendment rights within the school environment. In this landmark case decided by the Supreme Court in 1969, the Court ruled that students do not shed their constitutional rights to freedom of speech or expression at the schoolhouse gate. The case arose when students wore black armbands to school to protest the Vietnam War, and the school administration attempted to prohibit this form of expression.

The Court's decision emphasized that public schools are not immune to the First Amendment and that students could express their beliefs as long as their actions do not disrupt the educational process. This ruling underscored the importance of free speech, reinforcing the idea that students retain their rights as individuals even in school settings.

This case has continued to be a cornerstone in discussions about students' rights and school policies, illustrating the balance between maintaining school order and protecting individual freedoms.