Abstract
This paper examines teachers' local curriculum development by analyzing such development as a process of object construction. One team of lower secondary school teachers, mandated to develop a subject curriculum for their school, was followed closely over a year through an ethnographic approach. Data from six team meetings were analyzed to trace how the curriculum was developed through a series of object instantiations that also worked on the construction process. This process required various forms of epistemic engagement, which should be acknowledged in current discussions of teachers’ work and their extended professional responsibilities.