Smart teachers, be glad that they're still around. It is not the fact that "anyone can edit Wikipedia" which is the problem - as noted elsewhere vandalism is us

Smart teachers, be glad that they're still around. It is not the fact that "anyone can edit Wikipedia" which is the problem - as noted elsewhere vandalism is usually quickly dealt with - but more that in many subject areas "only certain edits are allowed to stand". Any topic which is even slightly politically contentious is soon taken over by a bunch of self-proclaimed keepers of The Truth™ who make sure that only their narrative is allowed to be followed. Given this phenomenon those parts of Wikipedia have more in common with political propaganda than encyclopedic articles. Even just using the references is fraught with error since those references are often just as biased as the articles in which they are referred. The only parts of Wikipedia which can still give some semblance of what is really going on are the edit history and talk pages, the latter in combination with its own edit history. It is there you can see how the narrative is being controlled, especially on the edit history pages.