[plt-scheme] A data point on 'match' in intro programming: +++!

I'm leading high-school students through the construction of a bare- 
bones "universe.ss" application that models the prisoner's dilemma,  
and I decided to import 'match' using a teachpack.  My experience thus  
far has been completely positive, and if there's a drawback to using  
'match' to replace structure-reference functions and predicates, it  
hasn't come up.

Well, actually, I suppose I can imagine the following objections:
- a straightforward import of 'match' doesn't support symbol patterns  
(presumably, it's a different "quote").
- you can't do nifty higher-order things with predicates and structure  
reference functions.

Both of these seem pretty minor.

Anyhow: thanks, all, especially Sam!

John

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