Open Educational Resources (OER):

OER Commons & Open Education: explains the movement, practice, sharing initiative and provides a PDF document FAQ for K-12 Educators.

Creative Commons: provides copyright licenses for others to publicly create and share educational resources. There are several basic licensing types which you can choose and mix. Creative Commons Downloads: logos, buttons, icons and printable PDF documents--including easy to read brochures and flyers describing licensing options.

Creative Commons Image Search: a search tool that provides access to over 300 million images from 19 collections, many of which offer CC licensed images for free use by educators and students.

CK-12 Foundation: believes in equal access to free education for all children and provides links to categorized STEM resources for Science, Math, English and more. Basic and advanced U.S. History textbooks are also accessible.

Curriki: resources in the areas of math, social studies, social science and economics, science, computer science, ELA, study skills and languages.

Khan Academy: offers clear instructional visual presentations for K-12 and beyond.

National Science Digital Library: browse curated collections by educational level, resource type, subject and standards.

State of Washington OSPI: offers an extensive list of curated OER resources.

YouTube: refine your search for videos with Creative Commons licensing using the filter feature to the right of your search results.

Websites:

Ask a Tech Teacher: provides a wealth of resources to support K-12 digital learning.

Hidden Histories: four websites, geared toward grades 6-12, that provide multiple perspectives and experiences about events in history. Search and find resources that will help your students make personal, relevant connections to historic events.

K-12 Instructional Resource Center: provides over 2,300 carefully selected and annotated resources to support educators with digital learning. No registration needed!

Library of Congress Primary Sources: offers a digital collection of primary sources for classroom use that is searchable by state standards.

News Literacy: What is News Literacy?: defines and opens the conversation about news literacy by providing links to a vocabulary slideshow, videos, articles pertaining to misinformation and fake news, PD opportunities and more (courtesy of Caitlin Bennett, Librarian, Londonderry Middle School).

Newsela: covers topics in all content areas and offers adaptive reading levels for each article. A great Personalized Learning tool!

Read, Write & Think: offers K-12 educators free materials pertaining to reading and language arts instruction.

Softschool.com: provides free worksheets, games and quizzes for Math, ELA, Science and Social Studies. Materials are organized by grade levels and topics. Holiday themes are also available.

Top Websites for Teachers: offers websites that provide lesson plans created by experts in the fields of: ELA, math, science, social studies, art, social and emotional learning, and more. Reviews, grade levels and pricing (Free, Paid) for each website help guide you to the appropriate resource for your needs.