The classroom descriptions draw from Deeper Learning: The Planning Guide by Monica Martinez and Dennis McGrath and from the work underway by members of the Deeper Learning Network, the more than 500 schools in 41 states that are serving as a source of innovation and practical resources. The Glossary section draws heavily from the online Glossary of Education Reform (edglossary.org) developed by the Education Writers Association and Great Schools Partnership. We are grateful for their insights. This guide report was drafted and designed by KSA-Plus Communications. The William and Flora Hewlett Foundation provided funding support. Photo credits: Allison Shelley/The Verbatim Agency for American Education for “American Education: Images of Teachers and Students in Action” (pages 2, 6, 12, 14) and Sandy Huffaker (pages 4, 8, 10, 21). Illustrations: Jon Krause (cover, page 1) and Emily Yahn (pages 3, 5, 7, 9, 11, 13). The foundation welcomes your feedback at firstname.lastname@example.org. You can also find more information at http://www.hewlett.org/strategy/deeper-learning/ and https://en.wikipedia.org/wiki/Deeper_learning.