Voices of teachers participating in an abrupt curricular change over two years shed light on the complexities of teacher change processes, tracing the interplay of issues of teachers knowledge and experience on change. Qualitative analysis revealed that teachers experience of change was mediated by: their instructional biographies, the amount of control they held over their teaching, how teachers prior practices and understandings were valued and, the varying levels of support provided. Findings reinforce the complexity of the change process which is mediated by an interplay of factors and...