This qualitative case study investigates how faculty members in a Title I middle school engage in collaborative practices to enhance professional growth without formal professional learning. Framed within a descriptive lens (Merriam, 1998) and informed by Brown and Duguid's Community of Practice (CoP) framework (1991), the study addresses two research questions: (1) How do teachers collaborate to improve their practice outside formal professional learning? (2) In what ways do these methods reflect the elements of CoP: working, learning, and innovating? Through data analysis, the study reveals that teachers predominantly collaborate on student behavior and classroom management, with curriculum being a desired but less frequent focus. Interpersonal conflict and time constraints emerge as primary barriers to collaboration. Despite challenges, participants perceive the school environment as collaborative, preferring self-selected collaborative communities over mandatory professional learning activities. The study underscores the alignment of teacher collaborative practices with CoP principles, emphasizing their interconnectedness and importance in resource-constrained settings, as well as the effect of such collaborative work on teacher identity. [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.]