The document discusses key facts and best practices for teaching English Language Learner (ELL) students. It notes that the population of ELL students in the US has grown significantly in recent decades and is now the fastest growing segment of students. ELL students benefit from materials that are familiar to their culture and language and need opportunities to practice language skills. Teachers should aim to limit cultural discontinuity between students' home and school environments. Successful ELL classrooms utilize techniques like word walls, modeling, explicit vocabulary instruction, and additional time for tasks.