In several of the studies, video was used not only for supporting teachers' learning but also for supporting facilitators'/teacher leaders' learning to orchestrate PD discussions.
Research on preparing and supporting facilitators of mathematics PD is still at a very early stage, but there are meaningful insights to be gained from the more extensive literature on classroom teaching.
These spaces need to move beyond discussions of work-tasks towards supporting facilitators to strengthen participatory approaches.
Youth volunteers working as Master Trainers (MTs) and Senior Master Trainers (SMTs) manage the programme on a daily basis, supporting facilitators and undertaking monitoring and evaluation.
RW: developed the training materials with facilitators and will support facilitator pairs with AK.
AK: conceived the study (with LL), drafted the first versions of the protocol, brought the research team together, led the project development, chaired the research steering group and will support facilitator pairs with RW.
Strategies staff developers might consider to support facilitators could include co-facilitation, in which a novice facilitator attends sessions of a more experienced facilitator deemed to be "excellent" (by whom, as there is frequently a mismatch between perceptions of faculty and students?).
Yet, in unpacking the detailed work of facilitation, we suspect that additional tools will be needed to support facilitators, particularly in the case of facilitators new to this work.
Having session agendas with predictable structures is intended to support facilitators in using the materials with integrity to the LTG PD goals and principles while also shaping the parameters for both adherence and flexibility.
These resources aim to support facilitators in maintaining the intended mathematical and pedagogical storyline of each session while necessarily adapting the materials to unique groups of participants and their learning and working contexts.
Therefore, while the papers discuss how they capitalized on the power of video in their projects, several of them also elaborated on how they supported facilitators' learning to use video to effectively support teachers' learning through videos of others leading similar PD discussions.
