The "Open Door" Program began in Spring 1968 at PS 123 and in Fall 1968 at PS 84, and has been expanded in these schools in the 1969-70 school year. It seeks, within the large urban school, to set up a flexible and intimate learning environment, to provide greater continuity between grade levels, and to enrich the curriculum so that children have a chance to relate to more things and people. The teacher's role is seen as supporting and extending these experiences. A "corridor" can be effectively considered a unit apart from the school and so a "small school" within a big school. Classrooms, from pre-school through second, opening from such a corridor are the program's unit. By opening the doors, enriching equipment in classroom and corridor, and encouraging movement through the corridor between the classrooms and movement into the corridor, a continuity program, one grade from another even from pre-school, could be established--thus meshing with the actual progress of the child. The program proposes to continue the enriched environment and individualized teacher-child relationship of Head Start, and to show that Head Start gains can be maintained. The program also seeks to create a model for student teachers of individual and small group teaching in the midst of multiple activities. (Author/JM)