¿Qué le da el valor a un billete de dólar? - Doug Levinson
lesson duration 03:52
630,622 views
lesson duration 03:52
630,622 views
lesson duration 03:48
32,470 views
2,882,261 views
lesson duration 04:58
658,345 views
191,448 views
64,712 views
2,563,110 views
241,875 views
11,250,004 views
1,412,538 views
4,533,222 views
2,258,192 views
5,897,177 views
46,732 views
2,684,811 views
39,305 views
430,390 views
112,589 views
2,115,723 views
lesson duration 04:01
56,557 views
484,508 views
1,941,147 views
29,752 views
20,423,403 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.