Instructional use gives you an exemption; nonprofit use does not.
Here's how it goes. If you're considering using copyrighted materials
for instructional purposes, do it!...provided that:
1. you are in a place dedicated to instruction and the material will stay
there (rather than being distributed to a wider audience);
2. you are using a legitimate copy as your source;
3. the service or resource you are using is not available for sale for
educational use.