[ssschev]

Thanks for that video. Well worth the 22 minutes. Where was this guy during my math 152 course at OSU? All that grueling time with Riemann summations wrapped up in a discussion lasting a few minutes.
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Colorado, the dog could not play basketball...
I had a great calculus instructor. He had the nickname of machine gun Kelly. Chalk in the right hand and an erasure in the left. He would write on the chalk board (blackboard) and erase the equation with his left hand. It kept your attention taking notes.

[tang-soo]

I had a great calculus instructor. He had the nickname of machine gun Kelly. Chalk in the right hand and an erasure in the left. He would write on the chalk board (blackboard) and erase the equation with his left hand. It kept your attention taking notes.

I did also. Sounds like you are describing my professor for Math 254 at OSU. He was very eccentric but a great teacher. He had a think Swedish accent that added to his characterization. He had chalk all over him by the end of class - including his face from scratching. Fond memories :)