Students and instructors can do all these things without seeking permission, without giving anyone payment, and without having to deal with the complications of fair use.
Copyright law places a high value on educational uses. The Classroom Use Exemption (17 U.S.C. §110(1)) only applies in very limited situations, but where it does apply, it gives some pretty clear rights.
To qualify for this exemption, you must be:
As long as the stipulations listed above are adhered to, the exemption will allow instructors and students to perform or display ANY works.