A little video that explains a tad of how real-world educators use Turnitin and why they love it!
Now that you see why Turnitin works for educators, click the link to find out how to add have assignments submitted to Turnitin: http://guides.instructure.com/s/2204/m/4152/l/40741-how-do-i-enable-turnitin-for-an-assignment
And then click this link to see how to view the Turnitin results: http://guides.instructure.com/s/2204/m/4212/l/64432-how-do-i-view-turnitin-results-for-an-assignment
To put the whole thing together, take a look at this video demo showing how to annotate students’ work from GradeMark!