This document discusses how to design effective units of study centered around essential questions and enduring understandings. It defines essential questions as open-ended, thought-provoking questions that require higher-order thinking about important ideas. Enduring understandings are the big ideas and core processes that are central to a discipline and have lasting value. The document provides guidance on identifying big ideas, crafting essential questions and enduring understandings, and using them to frame teaching and learning in a unit. Essential questions are asked throughout a unit to stimulate ongoing inquiry, while enduring understandings anchor the unit and represent the key takeaways students should have.