In this chapter we draw on the concepts of self- and collective efficacy to consider how teachers are positioned within school reform processes in the current education context. In particular, we examine a school reform context involving school-based curriculum development focused on the learning area of English in an Australian primary (elementary) school. We argue that in such literacy reform contexts, it is important to understand the varied perceptions and responses teachers have to change that are influenced by self- and collective efficacy beliefs. We use the term self-efficacy to describe an individual teacher’s beliefs about their capacity to perform certain ‘teacher’ tasks in a way that meet given educational goals (Skaalvik & Skaalvik, 2010). Teacher collective efficacy in contrast aims to represent the teacher’s beliefs about the capacity of all involved in a school or system – for example all of the teachers in one school – to perform teaching in a way that creates quality outcomes for all students (Bandura, 2012; Goddard, Hoy, & Woolfolk Hoy, 2004). As such, collective efficacy refers to the capacity of a teacher to assess and evaluate the capacity of the whole staff to produce a positive impact on the students in the school (Goddard & Goddard, 2001). Much of the current research available in this area aims to define and measure these concepts, with a particular recent focus on comparing dimensions and measuring similarities between the two concepts (e.g., Malinen & Savolainen, 2016)...