How did the supreme court reinterpret civil liberties in tinker v. Dee Moines?

In Tinker v. Des Moines Independent Community School District (1969), the Supreme Court reaffirmed the civil liberties of students by ruling that they do not "shed their constitutional rights to freedom of speech or expression at the schoolhouse gate." The Court determined that student expression is protected under the First Amendment, as long as it does not cause substantial disruption to the educational process. This landmark decision set a precedent for student rights, emphasizing the importance of free speech in schools.