Copublished with the National Council of Teachers of Mathematics (NCTM). With a focus on ways to best tailor instruction to captitalize upon the strengths each ELL brings to the classroom, The Common Core State Standards in Mathematics for English Language Learners, High School, explores some of the ways high school mathematics content can be made accessible to ELLs by building from their strengths and scaffolding their opportunities to learn more. The chapters included in this text describe specific lessons and instructional moves teachers may make that will not only support their students in learning the mathematical content, but also the associated English structures that accompany the content. Each chapter also provides Reflection Questions and Action Plans that are useful for practicing teachers, preservice teachers, graduate students, academics, researchers, and professional development providers.