Fair use allows for the use of copyrighted material without permission under certain circumstances. It is important for education as teachers integrate digital video and encourage students to share what they've learned. For educational use of videos without public performance rights, the video must be used in a nonprofit classroom setting directly related to the lesson. Portions of legally acquired videos can be used in student-created mashups if the use is transformative, the amount taken is appropriate, and it does not cause excessive economic harm. Whether something qualifies as fair use is determined by considering the purpose and character of the use, nature of the work, amount of the original used, and the economic effect on the original work's market.