One of the best things a teacher can do is to create a classroom environment that discourages AND DECREASES the temptation to commit plagiarism. Using plagiarism checking software is a must (just like a police officers presence decreases speeding on the road), but anti-plagiarism friendly assignments also are great. They turn your classroom into an anti-plagiarism environment while at the same time promoting creative and original thinking. Win-win!
Here’s a helpful link from MIT’s Comparative Media Studies and Writing department that offers teachers suggestions about how to create assignments that decrease the temptation to cheat: Resources for Teachers: How to Prevent Plagiarism
Good luck on the new school year!