The document discusses project-based learning and how to structure it in the classroom. It defines project-based learning as being organized around an open-ended driving question that requires students to inquire and create something new. It emphasizes using skills like critical thinking, collaboration, and communication. Effective driving questions are open-ended, provocative, and connected to real-world issues. The document also provides examples of driving questions and discusses integrating traditional and 21st century skill sets into project-based units.