577,226 views
266,245 views
408,573 views
797,813 views
181,218 views
288,610 views
458,271 views
317,394 views
404,076 views
193,321 views
674,383 views
9,835,967 views
435,893 views
408,059 views
2,633,856 views
303,556 views
182,934 views
504,428 views
86,251 views
482,946 views
233,467 views
1,021,235 views
824,354 views
1,374,115 views
Only students who are 13 years of age or older can create a TED-Ed account.
