Instead of seeing English language learners as a costly challenge, districts are increasingly recognizing the assets they bring to their schools.
To learn about the effects of dual language instruction compared to English-only instruction, take a look at the findings from the largest study of its kind, a 4-year study in Portland Public Schools.
The complete report is here:
National Academies of Sciences, Engineering, and Medicine 2017. Promoting the Educational Success of Children and Youth Learning English: Promising Futures. Washington, DC: The National Academies Press.