Rakes, ChristopherSaderholm, JonBush, Sarah B.MohrSchroeder, Margaret J.Ronau, Robert N.Stites, Michele2023-01-112023-01-112022-12"Rakes Christopher et al. Structuring Secondary Mathematics Teacher Preparation Through a Professional Development Framework. International Journal of Research in Engineering and Science (IJRES) 10, no. 12 (Dec. 1, 2022): 194-208. https://www.ijres.org/papers/Volume-10/Issue-12/1012194208.pdf."2320-9356http://hdl.handle.net/11603/26641This study examined the use of the PrimeD framework to improve secondary (Grades 7-12) mathematics teacher preparation. The study used design-based research through a four-year treatment-only mixed methods triangulation design. Data sources were program documents and assessments, focus groups, interviews, and field experience observations. The Reformed Teaching Observation Protocol with Performance Descriptors (RTOP+) measured candidates’ teaching quality at three time points during the student teaching internship. As the program incorporated more features of PrimeD, supervisors and mentor teachers increasingly took on leadership roles and each subsequent cohort demonstrated stronger growth on the RTOP+15 pagesen-USPrimeD frameworkGrades 7-12 mathematics teacher preparation.design-based research(RTOP+Text