Adapted from You Want to Know about Copyright in Education by Meryl Zeidenberg and Silvia Rosenthal Tolisano (CC-BY-SA).
1. Create your own media content. If that is not possible...
2. Search for public domain content. If you can't find what you're looking for...
3. Search for Creative Commons licensed content. If you're still not successful in finding what you're looking for...
4. Consider whether you can claim fair use for using copyrighted content. OR...
Consider whether you can seek permissions for using copyrighted content.