visualizzazioni
10:15
Khan Academy Exercise Software
1:21
Give the gift of life-changing education
7:34
Khan Academy Vision
8:41
Campaign finance | Political participation | US government and civics | Khan Academy
7:36
Human ear - structure & working | Sound | Physics | Khan Academy
34:26
Angela Ahrendts - Former CEO of Burberry | Entrepreneurship | Khan Academy
37:14
Khan Academy Ed Talks - Reimagining School with Sal Khan, Rachel E. Skiffer, & Kim Dow
8:53
Coercivity & retentivity (Permanent & electromagnets) | Magnetism & matter | Physics | Khan Academy
