After wearing black armbands to school in protest of the Vietnam War, three students -- two of them siblings -- were suspended by the Des Moines Independent Community School District for disrupting learning. The parents of the children sued the school for violating the children's rights to free speech. The landmark Supreme Court Case Tinker v. Des Moines determined it was a First Amendment violation for public schools to punish students for expressing themselves in certain circumstances. This lesson uses expert analysis, perspectives from the Tinkers, oral arguments and archival video to explore the case and the legacy of the ruling. Access the entire lesson through the following link: Tinker v. Des Moines (1969).