In a situation where a fellow instructor uses a copyrighted lecture, what principle has likely been violated?

The principle that has likely been violated is intellectual property rights. Intellectual property rights protect the original works of authors, artists, and creators, allowing them to control the use of their creations. In this scenario, the use of a copyrighted lecture without permission or proper attribution infringes on these rights. When instructors present material that is protected under copyright law, they must either seek permission from the copyright holder or ensure that the material falls under fair use exceptions, which have specific guidelines and limitations. This ensures that creators maintain ownership and receive recognition for their work, fostering an environment of respect for originality and creativity.

While educational integrity, student privacy, and professional responsibility are also important principles in the teaching profession, they do not directly address the legal and ethical implications of using someone else's copyrighted material without authorization.