What does rigor , a word that frequently pops up in conversations about education, really mean? More specifically, what does it mean for literacy instruction, and how does it relate to challenging standards-based assessments? In this informative and practical guide, literacy expert Nancy Boyles uses the framework from Webb's Depth of Knowledge (DOK) to answer these questions, offering experience-based advice along with specific examples of K–8 assessment items. Boyles defines ...