Periodic Fable

TED talks are always worth watching, so it’s difficult to recommend any particular one. However, if you’re interested in video in education, though, take a look at Salman Khan’s TED Talk about how he created his Khan Academy of videos made available free on YouTube starting with maths tutorials (he was a hedge fund analyst when he started them) but already expanding into other subjects including biology, astronomy. He has posted more than 2.000 tutorials, which are viewed nearly 100,000 times around the world each day, and his testimonials taken from comments on YouTube are thought-provoking for educators. These are open educational resources of the most useful and used kind.