Collaborative Practice and collective efficacy are two prominent themes in education currently. Both are aimed at enabling educators to be as effective as possible and raise the opportunities for the students in their care. Whilst the research around collective efficacy has been around for some decades (Albert Bandura) it has re-emerged as an important impact on student learning. John Hattie (https://visible-learning.org/2018/03/collective-teacher-efficacy-hattie/) has been a