Wikis can facilitate student technology use and collaboration in many ways especially in the Language Arts content area. I can see teachers using wikis in Math when it comes to problem solving. A teacher may post a problem and give students time to think and encourage students to post any questions they might have about it. Through the wiki, students can communicate with one another to see if together they can find a solution to the problem.
Overall, time and time again the collective knowledge of the masses proves to be more reliable than the knowledge of one individual and this is why Wikipedia has proven to be successful through the years.