Final answer:
The dissenting opinion argued that the school district did not violate the students' right to free speech as schools have the right to limit expression for the sake of maintaining a safe and orderly learning environment.
Step-by-step explanation:
The dissenting opinion in the Tinker v. Des Moines Supreme Court case argued that the school district did not violate the students' right to free speech. The dissenting opinion stated that schools have the right to limit expression in order to maintain a safe and orderly learning environment. Additionally, the dissenting opinion argued that the armbands were indeed disruptive and could have caused a significant disruption in the school.