A computer-assisted instructional program used at the United States Naval Academy to provide students in introductory physics with practice in problem-solving is described. The author first discusses the rationale for using a time-shared, tutorial approach and presents the steps involved in building a tutorial problem drill. Following this, the matter of getting the tutorials onto the campus computer system is considered. A set of sample instructions for students is provided. Finally, the system's driver routine is briefly reviewed. (PB)