What is the most appropriate action for a librarian who observes a student copying material from an online source for a report?

Engaging in a conversation with the student about plagiarism rules is the most appropriate action. This approach not only addresses the immediate behavior but also serves an educational purpose. It allows the librarian to inform the student about the importance of academic integrity and the proper way to use sources in their work. By discussing the implications of copying material without citing sources, the librarian can help the student understand how to conduct research ethically and avoid future pitfalls.

This proactive approach fosters a supportive learning environment where students can learn from their mistakes rather than simply facing consequences without understanding the underlying issues. Teaching students about proper citation practices and the value of original work contributes to their growth as responsible learners.