It is the responsibility of all educators to model good digital citizenship for their students. Especially when it comes to copyright, plagiarism and intellectual property. The waters are murky. Great resource from Silvia Tolisano AKA @langwitches
This blog post discusses Paper Rater. The free tool requires no registration and offers real-time, 24/7 analysis and detailed statistics about your work's originality, your word choice, grammar, spelling,style, word choice, readability. It suggests an overall grade, as well as opportunities for improving your writing.