In 2020/21, Maths Hubs will be running primary mathematics Mastery Readiness Work Groups led by Mastery Readiness Leads. This programme is for schools who have a commitment to developing a teaching for mastery approach long term, but who currently need additional support for improving maths teaching, learning and leadership. Although the school’s participation involves two teachers attending events outside of the school, it is expected that these two teachers have the opportunity to lead development across the whole school. Maths Hubs are now seeking to recruit schools for Work Groups, each involving up to eight schools. This document gives information about the Work Groups and how schools can apply to be involved. Your local Maths Hub will be given this information to make decisions about availability and your school’s suitability for this programme and may be able to offer suitable alternatives, if necessary.