This practicum report describes a year-long effort to reorganize a large urban junior high school according to the "house plan" concept, in which the school is organized administratively and geographically by grade level, rather than by academic department. The reorganization plan involved five major changes, including relocation of departments and classrooms in the building by grade level, reorganization and reassignment of staff by grade level, relocation and reorganization of support services, continued curriculum revision and innovation, and a major adjustment in the school day. The reorganization plan was implemented at the beginning of the 1975-76 school year and evaluated both internally and externally throughout the year. After a study of evaluation results by the faculty and staff, it was unanimously decided to continue the "house plan" for 1976-77. The appendix contains detailed evaluation data that reports the attitudes of school staff members, students, parents, and members of an external evaluation team toward the reorganization plan. (Author/JG)