In this study, we document pre-service teachers’ (PSTs) opportunities to learn about planning for equitable and ambitious instruction during clinical placements. We also test whether these opportunities vary by the level of participants’ perceived congruence between the vision of science teaching supported in their university coursework and the instructional practices and learning culture of their host classrooms. We analyzed interview and survey responses of 65 science PSTs from three preparation programs which required their novices to learn about planning and teaching that was consistent with research-based reforms. In placements where novices could participate in planning practices that were perceived as congruent with these reform-based visions, they were more likely than peers in low-congruence classrooms to engage in educative co-planning with a mentor, to take up responsibilities for planning lessons earlier in the school year and for longer periods of time, and to receive useful feedback from mentors.

Agency has been used as a lens to focus on how educators learn through pedagogical risk-taking, advocacy for curricular reform, and resisting policies that are not focused on the needs of students. We explored the role of agency as 65 preservice science teachers created learning opportunities for themselves during their clinical placements. Specifically, we investigated whether the types of agentive episodes varied by the level of congruence novices perceived between the vision of science teaching supported in their university coursework and the prevailing practices and culture of their host classrooms. Interview and survey data of participants from three preparation programs indicate that those in highly congruent placements experienced earlier and more mentor-scaffolded opportunities to take on active roles in teaching, and exercised agency to extend research-informed practices or tools they observed their mentors using. This resulted in participants seeing the richness of students' thinking and how capable they were of challenging work, given strategic supports. Those in low congruence placements had fewer chances to play active roles in teaching, were more likely to draw upon agency to make minor adjustments as they emulated their mentors' instructionally conservative lessons, and expressed concern they were "getting better" at aspects of teaching they viewed as inequitable or less responsive to students.

Support for new forms of teaching expertise with rigorous and equitable outcomes for student learning is a particular challenge when communities of actors working together do not share a similar language or vision of teaching practice. For this project, we coordinated activities in and outside of secondary science classrooms for cooperating teachers (CTs) and their preservice teachers (PSTs) to inquire into a set of research-based teaching practices and tools. Using frame analysis, we contrast three problems-of-practice addressed by 23 dyads: problems of developing novice teachers, problems of improving teaching, and problems of improving student learning. The last frame, improving student learning, required actors to share and co-create knowledge with members outside of their dyads. To do this, groups of dyads formed new or repurposed existing social networks to share tools and work on problems "without ceilings," meaning those that fueled ongoing lines of inquiry. We describe ways in which knowledge became shared, actors assumed new roles, and new types of tools, activities, and forms of discourse emerged for contextualizing collective work. This study suggests a need for a systems-level approach to teacher education that focuses on institutional networks of shared tools, practices, and deliberate socioprofessional routines for improving practice.

One of the major challenges in educational reform is supporting teachers and the profession in the continual improvement of instruction. Research-practice partnerships and particularly networked improvement communities are well-suited for such knowledge-building work. This article examines how a networked improvement community with eight school-based professional learning communities—comprised of secondary science teachers, science and emergent bilingual coaches, and researchers—launched into improvement work within schools and across the district. We used data from professional learning communities to analyze pathways into improvement work and reflective data to understand practitioners’ perspectives. We describe three improvement launch patterns: (1) Local Practice Development, (2) Spread and Local Adaptation, and (3) Integrating New Practices. We raise questions about what is lost and gained in the transfer of tools and practices across schools and theorize about how research-practice partnerships find footholds into joint improvement work.