I wrote The Monad Challenges with roughly this idea in mind. http://mightybyte.github.io/monad-challenges/ http://mightybyte.github.io/monad-challenges/ The i

I wrote The Monad Challenges with roughly this idea in mind. http://mightybyte.github.io/monad-challenges/ http://mightybyte.github.io/monad-challenges/ The idea was to guide people through various important particulars of monads. It still needs some work, but I think the basic approach is promising.