Purpose: This paper aims to explore developments over the past 25 years in the knowledge base on instruction-oriented middle leadership in schools. The authors document the trends in the literature since middle leadership began to attract scholarly interest in the late 1990s and explore the shifting structural and content patterns in the knowledge…

Many K-12 teachers struggle to meet the needs of diverse learners as school reforms promote new disciplinary literacy requirements. In response, language education scholars have argued that teachers must develop "disciplinary linguistic knowledge" (DLK), or an understanding of language in their content area and an ability to design…

Much has been said about what science content students need to learn (e.g., "Benchmarks for Science Literacy, National Science Education Standards"). Less has been said about what science content teachers need to know to teach the content students are expected to learn. This study analyzed four standards documents and assessment frameworks to…

The middle grades are in crisis. By state and national measures, student achievement gains realized in the elementary grades all too often diminish by grade 8. In most states, the considerable policy focus on high schools in recent years has not trickled down to a focus on the middle grades --yet preparation for "college- and work-ready standards"…