This document provides guidance on modifying K-12 lesson plans for English language learners (ELLs). It outlines a 4-step process: 1) select and evaluate a lesson plan, 2) modify the lesson plan, 3) modify the follow-up/assessment, and 4) use ESOL modification checklists. For step 2, it describes how to modify the objectives, identify relevant standards, and describe procedures with ESOL modifications. It provides examples of questioning techniques, strategies for different content areas, and overall strategies to support ELLs at different language proficiency levels.