Crash Course is a YouTube channel created by YA author John Green and his brother Hank. Together they and their friends tackle subjects like History or Astronomy. With 4,365,676 subscribers this YouTube Channel reaches teens everywhere. There is a vast amount of topics to choose from and they are very informative. Teachers are showing this in this classroom so librarians can also benefit from sharing this with their teen population.
It is a 10 minute or more video that can be watched along with reading material to give teenagers a better understanding of subjects like science and physics.
Check out this intro to Economics video: