A coworker approached me about his son's interest in programming. I gave him basic directions to get perl installed (nevermind why I chose perl--it's what suited the situation best in my opinion and not really what I'm asking about).

That said, what are good activities for someone (young, age 14 or so) who is being introduced to the world of programming via perl? Does anyone have experience with this? Suggestions for things that will be fun, in order to keep the kid's interest, yet still worthwhile?

Update:
Keep in mind that this is truly intro-level. Ie, "what's a for loop?".

In reply to Perl as an intro to programming by jrsimmon

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