The conventional introductory course rests upon the pedagogical assumption that the teacher's function is to transmit information (or knowledge) and that the student's function is to receive it. According to this transmitter-receiver model of the educational process, teaching begins with a “knower” who “transmits” what he knows to a “learner.” In higher education, certain euphemisms are employed to soften and furnish a color of legitimacy to this model: the teacher is a “scholar,” and “authority,” in his field; he possesses an “expert knowledge” which the student has come to school to “learn“; the student is the “learner.” The teacher's role, accordingly, is the active one of transmitting information and the student's role, accordingly, is the passive one of receiving and recording (or memorizing) this information.