Abstract
Posing mathematical problems is an inherent part of how we engage with mathematics in our daily lives, yet teaching students to make sense of situations and pose problems is not common practice. This paper explores the implementation of student problem posing across two iterative cycles of implementation. It draws on the Theory of Practice Architectures as an analytical framework to examine how site-specific practice architectures reconfigured across cycles to further enable student problem posing. This paper offers insights into how classroom conditions and reconfigurations make possible particular forms of participation and engagement during mathematical problem posing.