In this article, the authors explain the need for clinically rich middle school STEM teacher preparation. They describe how one university and school district with an established partnership collaborated to meet this need. The result was the formation of a residency program that aims to prepare high quality middle school STEM teachers who can fill the district's vacancies. The residency program is centered around clinical experiences where the triad--consisting of a preservice teacher, collaborating teacher, and university supervisor--is the nexus of learning. The authors share the takeaways from their experiences, highlighting the perspectives of the members of one triad. They conclude with an examination of the residency program's effectiveness in meeting its intended aim.