Becoming prepared to assess science learning is a daunting endeavor. Expert science teachers assess a wide range of scientific knowledge and practices, modify instruction based on assessment information, and consider the needs of their diverse learners. These skills are informed by but not necessarily consistent with what one believes and knows…

This dissertation adds to work exploring where language stands in the shaping of adolescent speakers' social identities, since identities emerge through discursive and social practices, and social selves are produced through interaction (Bucholtz 1999), but much of the literature studying the role of language in defining the adolescent's identity…