This proposal requests partial funding for the development of a new paleobiology hall at the University of Nebraska State Museum. This project will give students and the general public a dynamic view of the period of time known as the Age of Reptiles. It emphasizes experience with interactive exhibits that focus on concepts of geologic time, how species adapt and change, relative size, scale and time, the activities of scientists as role models, and it provides reinforcement of these experiences for students in the classroom. This project includes the first use in a museum of SemNet, a software program designed for concept mapping and the representation of knowledge networks, which will be used with a videodisc. Prototypes of all interactive exhibits will undergo formative evaluation to establish maximal audience accessibility, ease of use and educational effectiveness. The exhibit concepts will be disseminated throughout the state of Nebraska through mini- versions, teachers in-service training, and scientist-in- residence programs. This project will also be used as a teaching laboratory for the University of Nebraska's graduate program in Museum Studies.