Plagiarism is using someone else's words or ideas without giving them credit. This could be a direct quote from someone without proper citation, or it could be a paraphrase of their thoughts or ideas without giving proper attribution. When in doubt, cite!
This tutorial is intended to teach you about plagiarism and the academic policies of the University of Michigan-Dearborn. You will however need to be on the campus VPN to access it. Here are instructions on how to set up the UM-Dearborn VPN.
Plagiarism: How to Avoid It
Bainbridge State College has put together this great video on how to avoid plagiarism.