With the current H-plan of P.S. 64, the middle bar of the existing building physically partitions the courtyards, limiting the blending of atmosphere and accessibility between 9th and 10th Street. In this project, the most prominent architectural move is to replace the existing middle bar with a conceptual “border” that divides two worlds––an open school space and an interactive community public space. Inside the architecture, new typological intervention creates dynamic spatial dialogue by purposefully misaligning between school level and public space level. On the exterior, the rippling glass façade not only functions as an urban interface by visually and physically connecting streets at each side, but it also blends with the interior programs, inviting daylighting and natural ventilation to the inside.