¿Qué le da el valor a un billete de dólar? - Doug Levinson
lesson duration 03:52
630,601 views
lesson duration 03:52
630,601 views
lesson duration 03:48
32,468 views
2,882,067 views
lesson duration 04:58
658,340 views
191,421 views
64,712 views
2,563,049 views
241,869 views
11,249,338 views
1,412,496 views
4,532,956 views
2,258,001 views
5,897,077 views
46,731 views
2,684,545 views
39,304 views
430,357 views
112,588 views
2,115,644 views
lesson duration 04:01
56,556 views
484,480 views
1,941,022 views
29,751 views
20,422,994 views
Click Register if you need to create a free TED-Ed account. If you have already signed into ted.com click Sign In to verify your authentication.
Only students who are 13 years of age or older can create a TED-Ed account.