Learning math: still paper and pen Is it, from an educational perspective, still sound advice to recommend people to use  paper/a notebook (of the traditional sort, not the device) and pen/pencil? 
I wonder if computers are a disadvantage since whatever program you use, it will be giving you clues when it comes down to writing math symbols (so, you'll be thinking less). Add to it the fact that most examinations will be without a computer.

Pen and paper allows quick revisions of ideas.  The computer helps ensure you don't make stupid mistakes on the little details when trying to see the big picture.  In my opinion, there are times and places for both tools.
Often when I find myself lost while working on the computer, prying myself away and sketching the problem out on a piece of paper is the only way to break out of it.  Often I discover within minutes that I had been overlooking something obvious, because the computer tends to make me impatient and unwilling to calculate basic details.
On the other hand, sometimes when I'm in the lab with a pen and a pad and I find myself stuck and thinking in circles, all it takes is plugging some equation into Mathematica and calculate a few points for me. ("Oh, right, it diverges. That's why I couldn't prove it converges.")
The real way to learn about math is to realize there are parts of it which comes some ways and parts which come others.  There's no one way to do it, and probably no one way will work for any one person.  It's about understanding; if you don't understand, try something else.
