While Khan Academy’s videos flourish, a growing chorus of math teachers are calling out the site for emphasizing an unhelpful and rote version of mathematics. The only antidote: real, live human teachers.
People who are between midlife and old age are looking for another round of service with the same motivations that young people have--to give back, to have an adventure, to acquire experience, and to gain credentials and credibility.
UNICEF’s Rajesh Anandan talks about the lessons his organization has accumulated while figuring out the most effective ways to bring aid to children around the world.
Wind power isn’t used much in the developing world, since a turbine is much more expensive than a solar panel. But Access:energy is flipping that equation by finding ways to build the turbines in the communities where they’re needed.
A group called Genomic Gastronomy wants to use a dessert ingredient as an atmospheric sensor, and a way to get people to face the horrible air they’re breathing every day.
Just because you’re wearing your seat belt and have airbags doesn’t mean your car is safe. Turns out, it’s very likely filled with toxic chemicals. Find out which are the best and worst.
Cities are too big for workers to figure out where all the potholes are. They need citizens’ help. In Boston, they’ve figured out how to get that help as effortlessly as possible: An app that can sense a pothole from a bump.