Turnitin is a great tool that checks papers for similarities and plagiarism. Enabling Turnitin is a straightforward process.
This video will walk you through the process.
For a more in-depth discussion regarding Turnitin, there will be a Turnitin offering later this month (1/25).
Check out CELT for more offerings for the week:
January 17: Google in Canvas @ 6:30 pm
January 18: Grading Efficiency and Rubrics in Canvas @ 12:15 pm