K–12 Environmental Education: Guidelines for Excellence provides students, parents, caregivers, educators and others a roadmap to achieving environmental literacy by setting expectations for fourth (age 10), eighth (age 14) and twelfth grade (age 18) students and outlining a framework for effective and comprehensive environmental education programs and curricula. These guidelines define the aims of environmental education. They set a standard for high quality education, based on what an environmentally literate person should know and be able to do by the time they graduate from high school. They draw on the best thinking in the field to outline the core ingredients of environmental education.