This document provides information and strategies for mainstream classroom teachers to effectively support English Language Learners (ELLs). It discusses that most ELLs in the US are Spanish-speakers from immigrant families and face socioeconomic challenges. While ELLs develop social English quickly, academic English takes longer and must be explicitly taught. The document recommends strategies like building background knowledge, explicit vocabulary and language development instruction, scaffolding, and connecting reading and writing. It emphasizes the importance of both the students' native language and English in developing literacy in order to support ELLs in mainstream classrooms.