@khanacademy I heard about the Radio 4 program before I heard of Khan Academy. I suspect you're going to see a few radio 4 listeners joining
Listen to Khan Academy on BBC Radio. Sal and a CA teacher talk about the classroom of the future. Starts at 3'05" http://www.bbc.co.uk/programmes/b03w02sj …
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@khanacademy OutstandingThanks. Twitter will use this to make your timeline better. UndoUndo
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