Chapter 5 The role of subject-matter knowledge in teacher assessment

This chapter outlines some of the challenges in assessing teachers’ subject-matter knowledge. After reviewing traditional ways of mapping a domain, such as job analysis and “wisdom of practice,” the author alights on the two constructs, depth and breadth, that have come to define how teachers’ subject-matter knowledge is conceptualized. He argues that these two constructs constitute an impoverished vocabulary that misrepresents the complexity of the subject-matter knowledge teachers most need for effective instruction. He proposes an expanded set of constructs – differentiation and elaboration, qualification, integration, generativity, and epistemological knowledge – that better approximate the complexity of a subject-matter domain and serve as a better guide for creating an assessment system.