Chicago Charter North Kenwood / Oakland Campus (Grades PreK - 5) North Kenwood / Oakland (NKO) serves grades PreK through 5 and is one of the four campuses of the UChicago Charter School. NKO engages students in a challenging academic environment and fosters in all students a sense of responsibility and accountability both for themselves and their community. NKO is one of the highest-performing non-selective elementary schools in the City of Chicago. Proceeds from this book's sale go to NKO.