"After comprehending the outside of the object, the child likes also to investigate its inside; after a perception of the whole, to see it separated into its parts; if he obtained a glimpse of the first, if he has attained the second, he would like from the parts again to create the whole" (Froebel, 1896). The classroom of the future is envisioned here as janus interface with two divergent faces, ambitions and compositional strategies: the exterior makes reference to the site adn the GT campus and expresses regularity. The interior creates a new personal identity and expresses change. The threshold between the faces serves as an inviting transition between the urban and individual experience. The educational spaces are formed out of a rule set that transforms lines into space and specifies the emergent transitional space around the courtyard as the core of the project.