For example, Jacob William Albert Young (1906/1925). Of the University of Chicago, contended that “still more important than the subject matter of mathematics is the face that it exemplifies most typically, clearly and simply certain modes of thought which are of the utmost importance to every one”(p.17). Mathematicains, too, assumed that the study of mathematics had generative power: “The principal aim of mathematical education is to develop certain faculties of the mind” (Poincare, 1952, p. 128). The argument that what one learn in the study of mathematics does not transfer to other domains engendered both a reconsideration of the justifications for teaching mathematics and an outpouring of research on transfer.