Most competent teachers (quite rightly) view wikipedia with contempt and will mark down any essay that uses it as a source.......
Amen my brother amen.
In addition to base facts and those might also be necessarily verified; it's only positive feature, depending on the author of an article, is that it will assist in locating sources and references that are normally germane to the subject matter. And which are in a classic sense better and more crediible sources.
Edited by Centrix Vigilis - 16-Aug-2011 at 00:33