Khan Academy
Language: Portuguese Version: 2014.11.01 Size: 7.8 GB
Mais de 2000 vídeos em matemática e ciências, desde o básico ao avançada. Todo o conteúdo Khan Academy está disponível gratuitamente em pt.khanacademy.org
http://pt.khanacademy.org/
Download Options
Zip File over the web ( Unzip with 7-zip or Upload to RACHEL )
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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