The document discusses several Supreme Court cases related to student freedom of speech rights in schools. Tinker v. Des Moines established that student speech, such as wearing armbands, is protected unless it causes a substantial disruption or invades the rights of others. Bethel v. Fraser determined that schools can restrict lewd or offensive student speech. Hazelwood v. Kuhlmeier ruled that schools have more control over school-sponsored speech and can censor student media to avoid controversial topics.