Final answer:
In the Supreme Court case Tinker vs. Des Moines (1969), the court ruled that school officials must show that student speech would materially disrupt the educational environment before censoring or suppressing it.
Step-by-step explanation:
In the Supreme Court case Tinker vs. Des Moines (1969), the court ruled that school officials must show that student speech would materially disrupt the educational environment before censoring or suppressing it.
This means that school officials cannot restrict student speech unless they can prove that it would cause significant disruptions in the functioning of the school. The court recognized that students have First Amendment rights to freedom of speech, and these rights do not end when they enter the school premises.
For example, in the Tinker case, the court concluded that the students wearing armbands as a form of protest did not cause any actual interference with the school's operation, and therefore the school officials' actions to suppress their speech were unjustified.