In Firefox, I can use a ctrl-click (i.e., not a right click) to open a link in another window. In fact, I never really knew about the "right-click" method (now that I do, I still would not do it because it takes longer.) So to do what you want, you might have to think about all the possible ways that students might gain another browser window, and try to disable all of them.
Security and privacy
Disabling Right Click
This discussion has been locked because a year has elapsed since the last post. Please start a new discussion topic.