The TEACH Act gives more latitude to what instructors can use, but it also requires more work to obtain permission.
Fair use doesn't require as much work to obtain permission, but leaves instructors more vulnerable to lawsuits (See Cambridge University Press v. Becker).
If fair use permits a particular use of material, it is not necessary to consider the TEACH Act. Similarly, if the TEACH Act permits a particular use of material, it is not necessary to consider fair use.
Under the right circumstances, the TEACH Act allows the following (subject to the conditions detailed below):
To qualify, uses must meet the following additional conditions:
The TEACH Act does not apply to either of the following:
Instructors have a series of obligations to ensure a work is effectively covered by the TEACH Act when used in a virtual classroom setting: