04:59 Design, Engineering & Technology Why are airplanes slower than they used to be? lesson duration 04:59
05:02 Science & Technology How much electricity does it take to power the world? lesson duration 05:02
05:27 Science & Technology The material that could change the world... for a third time lesson duration 05:27
12:48 Science & Technology Climate change will displace millions. Here's how we prepare - Colette Pichon Battle lesson duration 12:48
08:08 Business & Economics Producers and consumers | Economics for first and second grade lesson duration 08:08
06:32 Thinking & Learning 3 ways to measure your adaptability— and how to improve it - Natalie Fratto lesson duration 06:32
14:30 Health What you should know about vaping and e-cigarettes - Suchitra Krishnan-Sarin lesson duration 14:30
10:06 Psychology Why we ignore obvious problems— and how to act on them - Michele Wucker lesson duration 10:06