[plt-scheme] Scribble for exams?

Apologies if this has been mentioned before; a quick search turns up  
nothing.

Has anyone developed a framework for expressing exams using scribble?  
I can imagine a whole bunch of ways this might work:

1) A simple library to be used with #lang at-exp scheme that produces  
TeX strings to be pasted appropriately.
2) An extension/adaptation to/of the built-in latex renderer that  
interprets sections as exam questions, etc.
3) An entirely separate scribble language with its own scribble  
abstractions.

I'm not thinking here of online delivery of exams, but simply of  
generating the paper representation of the exam, though I suppose  
online delivery could perhaps just be a separate renderer...

Thanks!

John

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