The involvement of an actual class in the conduct of a product evaluation is described as a powerful learning experience for the students and a valuable service for a client. The essential elements of such a program are: (1) a teacher-negotiated contract for an evaluation; (2) students who sign on by enrolling for credit; (3) background provided by the client; (4) formation of teams of classmates to conduct the work; and (5) reports of evaluation results to the client. The practice of paying the class for evaluation work is advocated as an incentive. Two specific evaluations by graduate students at Utah State University undertaken in this manner, one evaluating an approach to teaching French or Spanish at the elementary level and one evaluating college-level instructional materials for a distance learning course in French, are described. How this evaluation approach relates to the philosophy of John Dewey is explored, and the operation of the concepts of experiential learning is discussed. (Contains 12 references.) (SLD)