The current literature indicates a need for quality studies on how best to close the achievement gap between elementary English language learners (ELLs) and their English speaking peers. The purpose of this sequential explanatory mixed methods research study was to determine the relationship between standards-based differentiated instructional…

Background/Context: The prevailing theory of action underlying No Child Left Behind's high-stakes testing and accountability ratings is that schools and students held accountable to these measures will automatically increase educational output as educators try harder, schools will adopt more effective methods, and students will learn more. In…