Much continues to be written about the failure of U.S. schools to provide a quality education for at-risk urban students. Private Nativity model schools have been instituted in response to the need to provide quality education at the middle school level for such students. As the number of these and other alternative middle schools increases, a thorough examination of the strengths and weaknesses of the model is needed. This study provides such a multimethod examination of 9 such schools. Analyses of students' self-perceptions, perceptions of the quality of the climate at their schools, and academic performance, as well as classroom observations, interviews with teachers, administrators, and students are provided. Results suggest that the success of the Nativity model rests primarily with: (a) a strong and committed teaching staff, (b) an extended school day in which students receive homework assistance and tutoring, (c) small class sizes and student-teacher ratios that afford considerable individual attention from teachers, and (d) a supportive peer environment. (Contains 4 tables and 1 footnote.)