| Term | Definition |
| Tinker v. Des Moines (1969) | Students were suspended for wearing black armbands in protest of government policy in Vietnam. This was ruled unlawful because their symbolic speech was quiet and unless they disregard school discipline, prohibition of speech is against the First and 14th Amendments. |
| Bethel School District v. Fraser (1986) | A high school senior gave a Vice Presidential nominating speech filled with sexual innuendo, and was suspended for two days. With help from the ACLU, Fraser and his parents filed a lawsuit against the school. The District Court and Court of Appeals sided with Fraser due to the broad wording, but the Supreme Court reversed this decision. |
| Hazelwood School District v. Kuhlmeier (1987) | Two former high school students sued the school when two pages of the school publication on students' experiences with pregnancy and the impact of divorce on school was cut out. The Supreme Court held that the school did not have to sponsor speech that was against their views or values. |
| Westside Board of Education v. Mergens (1990) | A Christian club is okay because of the Equal Access Act. |