Links to a series of TED talks will be presented. Each student selects a Talk, listens to it, and delivers an initial commentary in the forum (online) based on the questions presented by the instructo

Links to a series of TED talks will be presented. Each student selects a Talk, listens to it, and delivers an initial commentary in the forum (online) based on the questions presented by the instructor, then returns a day or so later (online), reviews the commentaries from his/her peers (on other Talks), and posts a response to two of these commentaries. 

https://www.youtube.com/watch?v=vlpKyLklDDY&t=1s