Blended learning courses consist of both online, distance learning activities and onsite, hands- on lab instruction. Generally speaking, residents will begin each academic quarter with at least 7 weeks of online learning to establish a knowledge base within each content area. Psychomotor skill development and refinement is accomplished during onsite lab immersions conducted in Knoxville, TN. These lab immersions are held between weeks 8-11 of each quarter and range in duration from 11 to 17 days, depending on the content. Residents complete the 12-week academic quarter with additional online learning activities and required resident assessments (e.g., final examinations).