Hundreds of thousands of teachers have used this highly practical guide to help K–12 students enlarge their vocabulary and get involved in noticing, understanding, and using new words. Grounded in research, the book explains how to select words for instruction, introduce their meanings, and create engaging learning activities that promote both word knowledge and reading comprehension. The authors are trusted experts who draw on extensive experience in diverse classrooms and schools. Sample lessons and vignettes, children's literature suggestions, "Your Turn" learning activities, and a Study Guide for teachers enhance the book's utility as a classroom resource, professional development tool, or course text.