Notwithstanding the provisions of Section 106, the following are not infringements of copyright: performance or display of a work by instructors or pupils in the course of face-to-face teaching activities of a nonprofit educational institution, in a classroom or similar place devoted to instruction, unless, in the case of a motion picture or other audiovisual work, the performance, or the display of individual images, is given by means of a copy that was not lawfully made under this title, and that the person responsible for the performance knew or had reason to believe was not lawfully made.
What about distance education and D2L? Find information about this on the TEACH Act & Fair Use tab.
When you are teaching in a 'physical' classroom:
(this image was accessed through Google's 'available for reuse' search tool)
Lawfully Acquired means:
(this image was accessed through Google's 'available for reuse' search tool)