Several factors determine a school's success. The school-within-a-school model has gained popularity as an intervention that supports schools. This study focuses on teachers' perceptions of this model, which can offer valuable insights into the school's overall health. By understanding the perspectives of staff, school leaders can gain a better understanding of the impact of the model. Existing literature on the school-with-in-school model presents mixed views on its impact on school culture, discipline, and communication. This study explicitly examines teachers' perceptions of these factors. The study's findings demonstrate a positive perception of communication, discipline, and school culture with the relationship of the school-within-a-school model intervention. The positive impact supports that additional research is needed to establish a causal relationship between the intervention and communication, discipline, and school culture. This study provides a starting point for large urban schools seeking to enhance their communication, discipline, and culture. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]