This white paper has been created to provide an overview of research and expert opinion on 21st century learning environments, one of the four support systems in the Partnership‟s 21st Century Skills Framework. Its purpose is to offer a descriptive view of the places, tools, people, and policies that make up 21st century learning environments and, we hope, inspire its readers to work towards their realization. To further guide schools and communities in designing dynamic 21st learning environments, the Partnership‟s Resource 21 site provides a wealth of information on this and other Framework elements at http://www.21stcenturyskills.org/route21/.