The document by Mike Vanderwood, Ph.D., outlines best practices for assessing and intervening with English Language Learners (ELLs), highlighting their growing representation in schools and challenges they face, including higher special education placement rates. It emphasizes the need for evidence-based practices, early assessment, and the importance of phonological awareness and progress monitoring in improving literacy outcomes for ELLs. The research indicates that tailored interventions, including bilingual support, can significantly enhance literacy skills among at-risk ELL students.