The Role of Vice Principals in the Success of the School

In the early days when it was a small school just one vice principal and then that grew as the primary came on. There were assistant principals and then a lot of middle leaders but always within the roles and responsibilities of the most senior leaders sat the really key roles teaching and learning staff development bridges you know always up there as key responsibilities. The character development and cultural capital piece too so were they how many vice principals did you end up having in the end?