Architects use traditional drawing and modeling processes to design build-ings because they are highly adaptable to individual work habits, flexibleand inexpensive. The computers speed and storage capabilities offer tantal-izing new ways of testing design ideas but often impose technical barriers tothe individual designer. This paper will examine methods of removing suchobstacles and of integrating the computer into existing personalized ap-proaches to architectural design.Models are representations of reality in which the representation is madeby expression of certain relevant characteristics of observation. We willdiscuss why we need models, what forms these models take and how the ideaof models can help architects to plan and visualize their designs.Our theme revolves around the integration of the computer into the designstudio, which we explore in the paired courses, Avatars of Achilles: Intro-duction to Computer Modeling, and Avatars of the Tortoise: Introduction toArchitecture. In our architectural pedagogy, we remove the conceptual ob-stacles commonly posed by computers by emphasizing the concept of themodel. Using inexpensive Apple Macintosh personal computers, simpledrawing software and traditional drawing and modeling techniques we teachbeginning architecture students to adapt the computer to their design explo-rations. This process is built into the structure of the courses and theirunique interrelationship.Finally, by showing slides of our students at work in both settings and ex-amples of their projects, we will demonstrate the effect of changing modelsof architecture and computing.