[Haskell-cafe] Teaching haskell and fuzzy logic to high school students

I'm an Italian IT teacher and I would like to introduce functional programming using haskell. As classroom activity, I would like to build-up a simple fuzzy inference engine. Does anyone know if someone has experience in teaching haskell to high school students or something has already been done with fuzzy logic and haskell? I found only this page: http://www.haskell.org/haskellwiki/AI/Logic/Fuzzy with some information and a link to a pubblication (with fee, I didn't download yet). Thanks Claudio