The aim of this paper is to provide an introduction to the broad field of curriculum change, with the focus being on school curriculum. The first part of the paper provides a brief overview of curriculum change in New Zealand at the national level. In the early years of a state system of schooling, curriculum revision was highly centralised, giving way in recent decades to a wider involvement of stakeholders. The second part examines how national curriculum implementation in schools involves input from the state and schools; in particular, reference is made to a greater emphasis upon school-based curriculum development. It is argued that to achieve greater teacher involvement in school-level decisions, ongoing professional development of teachers is necessary.