Group learning “is a waste of classroom time and an obstacle to student learning,” argues Bruce Gans, who taught English at City Colleges of Chicago...As a student I always hated group work. Chances are that I had the best grades in the group, why should I have to negotiate and compromise with people who didn't get the grades I could get? Every year the biggest complaint I get in my statistics classes is from students who had someone in their group who didn't pull their own weight. Why are the rest of them responsible for that? I am the one who required them to work in groups, and I do it just so I can tell my bosses that I periodically do so.
Group projects are supposed to teach students to collaborate. Gans is dubious. “Groups are creatures of compromise, consensus, the intellectual mean, the mediocre.”
Having students evaluate each other’s writing doesn’t work if nobody’s a good writer, argues Troy Camplin, a lecturer in English at University of North Texas in Dallas.
A remedial writing student asked why we did peer review since, “I feel like I’m getting nothing but bad advice. I mean, they don’t know any more than I do.”
I'm sure that in certain situations and under certain situations, group work (or "collaborative learning") can be useful. But in general you can count me as a skeptic.