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 to the school. Bethel v. Fraser allowed schools to restrict lewd or offensive student speech. Hazelwood v. Kuhlmeier determined that school-sponsored speech in student newspapers is not protected and schools can censor it if related to legitimate pedagogical concerns.