And, from the USG:
Keep Teaching USG: USG Guides for Faculty
A hub for online instruction guides from the USG, institutions, the OER landscape, and external content providers with documents created to assist all USG faculty in moving online
Accessibyte Online is offering free access to its entire cloud platform of apps for blind, low vision, deaf and reading impaired students. Highly visual and fully audible typing tutor, games, flash cards and study apps. 45 days of access at this time.
American Panorama is an historical atlas of the United States for the twenty-first century. It combines cutting-edge research with innovative interactive mapping techniques, designed to appeal to anyone with an interest in American history or a love of maps.
Bunk sets out to capture this passion for the past surging all around us, and to reveal the ways that people of different backgrounds and purposes are connecting with the nation’s history.
The Choices Program
Teaching with the News: Free lessons connect your classroom to headlines in the news.
New American History
History is the turbulent, unpredictable, and deeply human record of everything that happened before this moment. Through interactive maps, video, audio, an algorithmic engine of journalism, and tools for educators, we hope to make visible what was previously invisible about our shared American story.
ChemCollective (joint project from NSF [National Science Foundation], Carnegie Mellon, and NSDL [National Science Digital Library])
Free, online chem lab simulations for topics including Stoichiometry, Thermochemistry, Equilibrium, Acid-Base Chemistry, Solubility, Oxidation/Reduction and Electrochemistry, Analytical Chemistry/Lab Techniques
Free STEM learning resorces
Interactive simulations for science and math
HHMI [Howard Hughes Medical Institute] BioInteractive
An independent science philanthropy that invests in biomedical scientists and science educators to advance both human health and our fundamental understanding of biology. Through its Department of Science Education, HHMI aims to transform science education into a creative, interdisciplinary endeavor that reflects the excitement of real research.
Hands-on Labs: COVID-19 Preparedness
A collection of resources to assist educators' efforts to move courses online during the spread of the coronavirus
JoVE [Journal of Virtual Experiments]
Virtual laboratory resources and videos
MERLOT - Material Search Results: virtual labs
Serves as a search index with 90+ virtual labs
National Museum of Natural History Virtual Tours
The Smithsonian, National Museum of Natural History virtual tours allow visitors to take self-guided, room-by-room tours of select exhibits and areas within the museum from their desktop or mobile device. Visitors can also access select collections and research areas at our satellite support and research stations as well as past exhibits no longer on display.
CLEAN (The Climate and Energy Awareness Network)
The CLEAN collection contains 700+ free, online, peer-reviewed, NGSS aligned, and ready-to-use educational resources for teaching about climate and energy including activities, lab demonstrations, visualizations, and videos which are easily searchable through various search features and tags.
LabXchange is a free resource for remote and hybrid learning from Harvard University.
"We offer high-quality digital content in the sciences, including lab simulations, that you can remix into customized learning narratives. Our social features, like classes, discussion forums, and mentorship, empower and connect learners, educators, and researchers worldwide."
A repository of links to learning resources organized by topics and formats. It's a Global Learning Map, a Shared Learning Collaborative initiative organizing online learning material to get the right content to the right student at the right time.
"We have a browser extension (Chrome / Brave, Firefox), a group chat for learners, an API and even embed widgets to display your own learning activity on your own website. This app itself is open-source and so are the development discussions. Dive in! :-)"
Digital Concert Hall - Berlin Philharmonic
Enjoy our Digital Concert Hall for free for 30 days. Just copy & paste the code BERLINPHIL to: https://digitalconcerthall.com/tickets
The Philharmonie Berlin is closed until 19 April to help contain the coronavirus. But the orchestra will continue to play for you – in the Digital Concert Hall. The Berliner Philharmoniker invite you to visit their virtual concert hall free of charge.