Comment Well, there is Codea (Score 4, Informative) 340
Quite interesting
Where the men are men.
The women are men.
And the 13 year old girls are cops.
Who are alo men...
Pen and paper for diagrams.
Notebook/netbook for plain text.
Convert your hand-drawn diagrams later, using a scanner or re-draw using a graphics tablet after class.
I did exactly that "back in my day" using a Jornada 680. It worked great.
PROTOCULTURE!
DECULTURE!
There are two ways to write error-free programs; only the third one works.