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Scott Cram Inner circle 2678 Posts |
As some of you may know, Arthur Benjamin has a lecture series available from The Great Courses about "Secrets of Mental Math".
Recently, they posted 1 full video from this serie...... Numbers. It's not just free to watch online, they even provide a download link! To any regular dweller of this area, it's probably not radically new information, but it is a valuable teaching/learning tool nonetheless. |