Thank you, @khanacademy, for for having some of the clearest, best explained educational videos on the #internet! Sal Khan, you have some of the best whiteboard penmanship out there! This physics teacher appreciates you!
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Thank you, @khanacademy, for for having some of the clearest, best explained educational videos on the #internet! Sal Khan, you have some of the best whiteboard penmanship out there! This physics teacher appreciates you!
