Despite the high prevalence of acute confusion among elders and the importance of its early detection, there are few reports of systematic efforts to increase staff competence. This article describes the development and evaluation of an 8-hour educational program designed to prepare staff nurses to perform in a new role, the unit-based acute confusion Resource Nurse (ACRN). Pre- and posttest scores were obtained for the 80 registered nurses who participated in the program. Paired t tests showed that knowledge and confidence significantly increased for participants as a result of their participation in the educational program. This program can serve as an effective model for geriatric staff education.