Khan Academy
Spanish 8.6 GB
Más de 2000 videos en matemáticas y ciencias, desde la básica a la avanzada. Todo el contenido Khan Academy está disponible de forma gratuita en es.khanacademy.org.
http://es.khanacademy.org/
Download Options
Zip File over the web
Zip File over FTP (host: ftp.worldpossible.org user/pass: anonymous)
Rsync
Copy & paste the above command to any Unix-based system to begin download. Rsync can pick up where it left off and only downloads changes. It's the most efficient way to stay up-to-date with RACHEL modules.
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RACHEL is a World Possible project, 2021
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