The document discusses how to design school facilities for 21st century learning. It notes that most students will be taught in buildings from the 20th century, and reviews research showing the impact of facility conditions and design on student performance. Specifically, it finds that natural lighting, views, and good environmental conditions can increase test scores by 5-17%. The document advocates for flexible learning environments that facilitate collaboration and project-based learning. It also discusses how career technical education, STEM/STEAM, sustainability, and green building can be incorporated into 21st century school design. Districts are advised to develop long-term facility master plans and engage stakeholders to transition 20th century buildings for 21st century uses.