Curriculum materials are a crucial tool with which teachers engage in teaching practice. For preservice teachers to learn to use science curriculum materials in productive ways, they must develop a conception of themselves as elementary teachers in which the use of science curriculum materials is a valued dimension of science-teaching practice. We define those dimensions of teachers' professional role identities concerned with the use of curriculum materials as curricular role identity . This mixed-methods study examines preservice elementary teachers' development of curricular role identity for science teaching through their use of science curriculum materials. Forty-seven preservice elementary teachers in two sections of an elementary sc...