230,850 views
285,271 views
528,642 views
1,086,094 views
452,944 views
321,296 views
1,056,697 views
1,572,253 views
835,063 views
189,628 views
2,171,347 views
2,804,381 views
8,811,241 views
451,725 views
209,923 views
334,790 views
1,497,888 views
474,754 views
852,315 views
418,950 views
993,536 views
430,527 views
242,891 views
2,626,371 views
Only students who are 13 years of age or older can create a TED-Ed account.
