The main building at SPSG includes exciting spaces for just about every school function. Designed to especially support SPSG's exceptional academic program, the classroom wing has two floors. The first floor is home to middle schoolers and is arranged by grade level with fifth and sixth graders at one end of the hall and seventh and eighth graders at the other. Teachers are always close by to nurture and support. The second floor houses the upper-school classrooms and is organized around academic departments, the pattern found at colleges and universities. The hallways are decorated with class projects, poster-sized pictures of class fieldtrips, and important notices.