TED is a brand of US conferences whose mission is summarized in the "ideas worth spreading" formula.
TED events are held throughout North America, in Europe and Asia, with lectures being broadcast in live streaming and then made available for free at the address https://www.ted.com/talks under CreativeCommons license, with the support for automatic translation of subtitles.
Currently there are over 3,000 lessons available.
TED ED is a "derivative" of TED. A tool is made available to create lessons from a video and the lessons are available to everyone.
How to
Here are the site main areas.
Here how to create a lesson in a very friendly way.
