04:17 Performing Arts The physics of the "hardest move" in ballet Lesson duration 04:17 2,556,008 Views
04:30 Thinking & Learning 5 tips to improve your critical thinking Lesson duration 04:30 10,971,986 Views
06:59 Science & Technology The complicated journey of marine plastic pollution Lesson duration 06:59 34,351 Views
04:28 Social Studies This is Sparta: Fierce warriors of the ancient world Lesson duration 04:28 3,982,982 Views
04:33 Literature & Language How miscommunication happens (and how to avoid it) Lesson duration 04:33 3,058,077 Views
05:21 Literature & Language The controversial origins of the Encyclopedia Lesson duration 05:21 465,612 Views
