13,236,288 views
2,993,201 views
133,748 views
21,970 views
1,510,845 views
727,579 views
65,845 views
2,740,391 views
905,964 views
1,471,064 views
1,128,215 views
14,319 views
31,564 views
2,185,034 views
2,141,614 views
110,270 views
63,700 views
807,811 views
289,711 views
62,087 views
1,018,420 views
1,944,749 views
503,238 views
265,827 views
Only students who are 13 years of age or older can create a TED-Ed account.
