This is actually pretty helpful, in that my approach to programming in a new language is "Try to do X with the new language, and if I can't, read the docs until I can." That is, I try to actually DO something, and gather incidental knowledge along the way.

This is a really good post on how to do something useful with Haskell (plus it has IO, which is nice). One of the nice things about this approach is that the incidental knowledge can be useful, e.g. I didn't know about the "-e" flag to GHC.