TED-Ed is a global and interdisciplinary initiative. We want to share TED-Ed videos about everything with learners everywhere! We're geared towards a high school / college audience. Our videos are not for a professional audience in that they aren't really used to train how to teach, but they are intended for students (what we call learners) in that they teach a lesson.
TED-Ed is also a platform for teachers. It's to amplify their voices and bring their best lessons to scale. While we hope to change education in a big way, that is not what we are about. Our videos do not talk about education reform, rather they teach lessons. They are "to educate" and not "about education."
More information here: http://ed.ted.com/