This qualitative case study highlights the ways a novice middle school mathematics teacher established an adolescent-centered community of care that set the stage for responsive middle level mathematics teaching (RMLMT). Findings revealed that fostering caring school-based relationships supports the establishment of a responsive classroom environment. This can be achieved through an early and ongoing purposeful focus on teacher-student and student-student relationship development and through nurturing emotional safety. Further, holding a student-centered teaching approach is a way to respect, value, and advocate for young adolescents. This can be achieved by celebrating diversity, supporting academic and personal development, and fostering persistence. Fostering a responsive classroom environment and respecting, valuing, and advocating for young adolescents is foundational to establishing an adolescent-centered community of care in any middle school classroom, especially in a mathematics classroom. Placing an acute focus on culture and community is essential to establishing an adolescent-centered community of care that sets the stage for RMLMT to take place.