Marking up exercices

[Joachim Ziegler <ziegler@mpi-sb.mpg.de>]

Hello list,

What's the current state of the art in marking up exercises, exercise 
sections and answers to exercises?

I want to have sections with a title "Exercises" in which one ore more 
exercices appear.

The following features would be nice:

- Exercise sections should not be numbered, not appear in the TOC, but 
be allowed to appear at any level in the document.

- The exercises should be numbered throughout the whole document by the 
stylesheets. (If that's not possible, then if an exercise within an 
exercise section is the only one, it should not get number "1", because 
that's obvious.)

- Answers to exercises should only be output in a "teacher's version" of 
the document.

I've broswed through the archive and I am a litle bit confused now by 
all the different suggestions using bridgeheads, simplesects, 
orderedlistsm qandasets... for this problem.


Greetings,
Joachim