"This collection provides a list of free educational resources for K-12 students and their parents and teachers. It features free video lessons/tutorials; free mobile apps; free audiobooks, ebooks and textbooks; quality YouTube channels; free foreign language lessons; test prep materials; and free web resources in academic subjects like literature, history, science and computing."
"Curriki is an online environment created to support the development and free distribution of world-class educational materials to anyone who needs them. Our name is a play on the combination of 'curriculum' and 'wiki' which is the technology we're using to make education universally accessible."
Founded by Justice Sandra Day O'Connor, "iCivics teaches students how government works by having them experience it directly. Through our games, the player steps into any role – a judge, a member of Congress, a community activist fighting for local change, even the President of the United States – and does the job they do.
"The Library of Congress offers classroom materials and professional development to help teachers effectively use primary sources from the Library's vast digital collections in their teaching."
This website is sponsored by the United States' NASA program. Lesson plans and ideas for K-12 students regarding science, technology, engineering and mathematics, or STEM, are freely available here.
This National Geographic website offers a variety of geography-based web resources for K-12 students.
Great resources stemming from PBS programming.
Smithsonian Institute for Educators Support deep, meaningful learning with an online universe of authentic resources and tools for making them your own.
A to Z Teacher Stuff is a teacher-created site designed to help teachers find online resources more quickly and easily. Find lesson plans, thematic units, teacher tips, discussion forums for teachers, downloadable teaching materials & eBooks, printable worksheets and blacklines, emergent reader books, themes, and more.
Curriculum Connections is a collection of original lesson plans and resources that help K-12 educators integrate multicultural, anti-bias, and social justice themes into their curricula. Each edition is organized around a particular topic or theme, and a new edition is published three to four times per school year.
Discovery Education combines scientifically proven, standards-based digital media and a user community in order to empower teachers to improve student achievement. Free lesson plans written by teachers for teachers. Here you will find hundreds of original lesson plans for elementary, middle and high school students.
The National Education Association (NEA) has gathered thousands of terrific lesson plans for all age levels.
PE Central's mission is "to assist teachers, parents, and others who work with youngsters to guide them in the process of becoming physically active and healthy for a lifetime."
"Hundreds of standards-based lesson plans written and reviewed by educators using current research and the best instructional practices."
This is an American Federation of Teachers (AFT) web portal with activities, worksheets, and lesson plans.
WNET Education Discover free learning resources for grades preK-12.