The document discusses the key concepts of Understanding by Design (UbD), an educational framework created by Grant Wiggins and Jay McTighe. It outlines the three stages of "backward design": 1) identifying desired results, 2) determining acceptable evidence, and 3) planning learning experiences. The document emphasizes that UbD focuses curriculum design on big ideas and enduring understandings. It also stresses the importance of aligning assessments with stage 1 goals to ensure students develop desired understandings rather than just knowledge.