Meaningful collaborative interactions in asynchronous online mathematics teacher professional development (PD) may provide teachers with valuable opportunities to learn. We studied collaborative interactions in online teacher PD activities that involved embedded videos, prompts, discussions, and multiple online tools. Analysis of teacher responses…

Self-directed educator professional learning is commonplace, and such activities increasingly span multiple digital spaces and formats, and blur boundaries between online and offline. In this exploratory research, we analyze the case of the #CharlasEducativas, a dynamic professional learning ecosystem that began in 2020 and is based in Spain. We…

Teacher learning in asynchronous online professional development (PD) is often measured by self-reported instruments, despite uncertainties regarding teachers' accuracy in their self-assessment of learning. This study explored whether teachers' self-reported "gains" in content knowledge for teaching aligned with those measured by direct…

Scaling up evidence-based educational interventions to improve student outcomes presents challenges, especially when adapting to new contexts while maintaining fidelity. Structured teacher adaptations that integrate the strengths of experimental science (high fidelity) and improvement science (high adaptation) offer a viable solution to bridge the…