Lucy Calkins is the author of the best-selling new grade-by-grade Units of Study for Teaching Reading, Grades K-5 and Units of Study in Opinion/Argument, Information, and Narrative Writing, Grades K-8 series, which are quickly becoming an essential part of classroom life in tens of thousands of schools around the world, and companions such as the Workshop Help Desk series; as well as the author or coauthor of numerous foundational professional texts with Heinemann, including The Art of Teaching Writing, Writing Pathways: Performance Assessments and Learning Progressions, Grades K-8, Pathways t...