How I Use It
I would use TED-Ed most often as the introduction to a new subject or as a way to supplement instruction/earn "bonus" credit, or to have banked for days when a substitute is in class. The subjects of the videos are mostly specific, and some of them may not fit explicitly into a curriculum. Fortunately, the ability to modify the response section can help teachers direct the points of the video that relate to their syllabus, or to connect a specific video to a larger field of study.
It combines short, fun, and densely informational videos with a Google Forms-esque quiz, essay, and discussion section. Each video comes with some stock questions, but you can dig in and edit, remove, or add opportunities for student feedback as it fits your intent with the video. While it doesn't add any features that weren't already available elsewhere, it condenses them into a very nice, compact, and pleasant interface for both teachers and students. The default questions on the quiz are a little reminiscent of easy "follow along with the video" worksheets, but they're a great starting point. The videos also do a nice job of staying current (I saw more than a few non-dated pop culture references.) And since the videos are on YouTube, there's a (remote) possibility of inspiring students to look for more knowledge through what they might consider merely "entertainment" sites. The necessity of creating accounts is a bit of a headache, but I'm not sure how to get around that while maintaining functionality. I also really like that, should you stumble onto a YouTube video that's not currently featured on this site, you can create a new lesson based on that video. The ability to go beyond is a great launching point for additional lessons, and could provide opportunities for student-led learning.