This document provides information about managing instruction in a multilevel English as a second language (ESL) classroom. It discusses the many factors that can create a multilevel environment, including students' educational and cultural backgrounds, personality, goals, age, and English language proficiency levels. It then describes strategies for grouping students, such as pairing higher- and lower-level students, and for differentiating instruction through leveled tasks that challenge students at their ability levels. The document emphasizes using resources like the teacher's edition to select expansion activities to assign to different proficiency groups. The overall goal is to engage students of varying abilities through meaningful, targeted practice opportunities.