Under Tinker v. Des Moines, officials may regulate independent student expression when they can reasonably forecast material and substantial disruption or interference with the rights of others. A silent political armband that produces discomfort but no substantial disruption remains protected. Officials need not wait for disorder to occur, but an undifferentiated fear of controversy is insufficient.

Other cases address specialized school settings. Under Hazelwood, a school may exercise editorial control over school-sponsored curricular expression, such as a supervised class newspaper, when its decisions are reasonably related to legitimate pedagogical concerns. Bethel School District v. Fraser permits greater authority over lewd student speech at a school assembly. Morse v. Frederick recognizes school authority over a student message reasonably viewed as promoting illegal drug use at a school-supervised event.

These are not interchangeable exceptions. A principal cannot invoke Hazelwood merely because an independent leaflet is distributed at school, and a political armband does not become school-sponsored because teachers see it.

Off-campus speech requires additional caution. In Mahanoy Area School District v. B.L., the Court emphasized that schools ordinarily possess less authority away from campus, where parents rather than administrators often supervise and where broad control could follow students all day. Schools may retain important interests involving serious threats, severe bullying or harassment, cheating, and participation in school activities, but location and the school's connection to the harm matter.

Compelled student expression uses another principle. A public school ordinarily cannot require a student to salute the flag or affirm an ideological belief.

A student independently posts criticism of school policy from home, using a personal phone, without threats or targeted harassment. Off-campus distance weakens the school's regulatory interest. A curricular newspaper prepared under teacher supervision brings Hazelwood's pedagogical rule into view; a quiet armband worn in class instead invokes Tinker's disruption inquiry.

The sequence is institutional: identify the public school as government actor, classify the expression as independent or school-sponsored, locate it on or off campus, identify the school's asserted reason, and select the setting-specific rule. Offense at the student's viewpoint does not itself establish disruption or a legitimate pedagogical concern.

Video lesson: Freedom of Speech: Crash Course Government and Politics #25