Open Educational Resources (OER)
https://www.newamerica.org/in-depth/prek12-oer-in-practice/resources-get-started
OER Commons
Videos from Better Lesson for Examples of How to Do Blended Learning
https://betterlesson.com/browse/master_teachers/blended
Teaching Coding in Every Classroom
The Science of Learning
https://www.retrievalpractice.org
EduMatch-An Online Community of Educators for Collaboration
http://www.edumatch.org/awesome-table-of-edumatch
TeachEngineering
https://www.teachengineering.org
Khan Academy
TED Talks
TED-Ed (lessons for TED Talks)
PhET Simulations (physics, chemistry, biology, earth science, math)
CK-12-self-paced learning content & tools
Online Open Textbook Repositories
https://open.bccampus.ca/find-open-textbooks
https://www.merlot.org/merlot/index.htm
https://open.umn.edu/opentextbooks
https://www.floridashines.org/orange-grove
https://textbooks.opensuny.org
Spongelab
https://www.spongelab.com/index.cfm
WISE-web-based inquiry science environment
MIT Open Courseware
edX
Edpuzzle
BigHugeLabs