05:43 Business & Economics What does it mean to be a refugee? Lesson duration 05:43 Manage Library 1,414,284 Views
04:33 History Why wasn’t the Bill of Rights originally in the US Constitution? Lesson duration 04:33 Manage Library 914,572 Views
04:18 Writing/Composition The evolution of the book Lesson duration 04:18 Manage Library 798,663 Views
04:41 Mathematics Making sense of irrational numbers Lesson duration 04:41 Manage Library 1,902,083 Views
05:11 Science & Technology The microbial jungles all over the place (and you) Lesson duration 05:11 Manage Library 370,370 Views
04:18 Social Studies Why is the US Constitution so hard to amend? Lesson duration 04:18 Manage Library 1,038,366 Views
04:39 Psychology The psychology behind irrational decisions Lesson duration 04:39 Manage Library 2,320,823 Views
07:20 Psychology Psychotherapy and Sigmund Freud Lesson duration 07:20 Manage Library 3,784,080 Views
04:54 Literature & Language Who IS Sherlock Holmes? Lesson duration 04:54 Manage Library 2,521,659 Views
04:46 Environmental Science The threat of invasive species Lesson duration 04:46 Manage Library 2,246,302 Views
04:58 Nature of Science Why do cats act so weird? Lesson duration 04:58 Manage Library 12,391,290 Views
04:43 Science & Technology The Turing test: Can a computer pass for a human? Lesson duration 04:43 Manage Library 1,656,950 Views
07:58 Thinking & Learning The backwards brain bicycle: un-doing understanding Lesson duration 07:58 Manage Library 30,756,085 Views
05:01 Growth & Development The surprising reason you feel awful when you're sick Lesson duration 05:01 Manage Library 4,184,554 Views
04:53 Science & Technology Why is Mount Everest so tall? Lesson duration 04:53 Manage Library 2,867,386 Views
04:38 Growth & Development The power of the placebo effect Lesson duration 04:38 Manage Library 4,622,328 Views
02:28 Social Studies If The World Were 100 People Lesson duration 02:28 Manage Library 3,328,740 Views
06:07 Science & Technology How do schools of fish swim in harmony? Lesson duration 06:07 Manage Library 686,761 Views
04:16 Visual Arts The poet who painted with his words Lesson duration 04:16 Manage Library 353,669 Views
04:30 Thinking & Learning 5 tips to improve your critical thinking Lesson duration 04:30 Manage Library 10,595,009 Views
03:07 Johann Sebastian Bach's Life (The 3-Minute Version) Lesson duration 03:07 Manage Library 155,593 Views
04:28 Social Studies This is Sparta: Fierce warriors of the ancient world Lesson duration 04:28 Manage Library 3,873,767 Views