Design can be thought of as a process of interpolation. In the face of incomplete and distorted conditions, the designer interjects solutions that interpolate and mediate the given situation. The Upper level Electronic Studio in the Spring term 1999 investigated the nature of interpolation and its relationship to process, space, and program. In particular, it investigated how virtual space can interpolate and augment physical space. The students also researched the multiplicity of meanings of interpolation such as: Insertion/interjection, estimation, linkage, mediation, transformation, and augmentation. The process of interpolation was then mapped into a real architectural problem: The re-design of Hayes and Crosby Halls as an integrated School of Architecture and Planning for the 21st century. Some students took advantage of the option to choose other sites and building programs.