Explicit instruction in the academic language of disciplines is considered a major component of effective literacy development for adolescents (National Governors Association, 2010) and has become one of the standards in all disciplines. States have mandated that schools adopt teacher evaluation models and professional learning community (PLCs)…

Academic vocabulary knowledge is central to reading achievement, particularly for students who have limited experiences with academic discourse outside of school. Yet many teachers devote little time to focused instruction in this area, because they may lack critical meta-linguistic and pedagogical knowledge. The purpose of this longitudinal…