Introduction
Pedagogical constructivism entails three princples:encuraging collaboration,primtive activity and exploration,respecting multiple points of view and emphasizing authentic problem solving (solomon,2000,p.328)pedagogical constructivism (henceforth"constructivism") is also sometimes taken to be a full blown philosophical position about the nature of knowledge; namely, we make knowledge up like the rules of chess. I argue that the value of peer collaboration is contingent upon the context and limited by our epistemological stand in specific ways that is little noticed by construtivists.