The team from Te Papapa School, leaders and teachers, explain the systems and processes that allow them to work together and share responsibility for student improvement using assessment information. Their multi-layered approach to assessment requires a learning system focused on using high quality, valid and reliable assessment information at all levels of the school, using a range of formal and informal processes to guide learning and teaching, to best meet the needs of every learner. School leaders and teachers require a shared belief in the value of assessment and how working together to build assessment capability contributes strongly to continued improvement for both students and teachers, as they work towards equitable outcomes for their tamariki.