Huron (South Dakota) Senior High School is developing a model information retrieval program using audio tape cassettes. Using Title III money, the school, which has 1,000 students, will add 1,000 commercially produced tapes and 1,500 locally produced tapes to its library, along with listening stations, tape recorders, cassette players, duplicating equipment, and other necessary equipment. It was decided that cassette equipment is more appropriate than a dial access system for a school of this size because it is less costly and more flexible. To increase the competence of teachers in use of this equipment, a pre-service training meeting and three in-service meetings will outline the project and provide training in production, selection, and use of tapes. With the help of teachers and librarians, students will be encouraged to make full use of the equipment in all of their classes. An appendix outlines the cost of the project. (JK)