In the heart of Tokyo, this school - conceived as a giant toy block game - appears to be able to be taken apart and reassembled in other ways. This free and ludic space allows the pedagogy to enter into play and the play into the pedagogy. We are here in a landscape of objects that can be appropriated by the children: "stair huts", "giant lamps", a castle tower, classrooms as little houses... Light and landscape permeate among all thesse colored playfull things.