“…With growing interest in curricular innovations in K-12 STEM (Science, Technology, Engineering, and Mathematics) settings, researchers have argued for the careful study of curriculum implementation (Fishman, Marx, Best, and Tal, 2003;Penuel, Fishman, Haugan Cheng, and Sabelli, 2011;Ruiz-Primo, 2006;Schneider, Krajcik, and Blumenfeld, 2005). Implementation research can serve a number of important purposes including documenting the degree to which an intervention is enacted as intended, allowing for more nuanced understandings of the outcomes of an intervention, informing refinements to curriculum and teacher professional development, and providing invaluable information about the conditions under which curricular innovations are likely to be successful when scaled to a broader population of teachers and students (Century and Cassata, 2016;Ruiz-Primo, 2006). As curricula introducing new approaches to STEM education are designed, there is a clear need to explore the degree to which implementation resembles what was envisioned by curriculum designers and to develop understandings of the various factors that may influence how a curricular innovation unfolds when used by students and teachers in actual classrooms (Cassata, Kim, and Century, 2015).…”