This course/tutorial was created with purpose to better understand functional programming idioms using Scala language. It covers type classes, monoids, functors, applicatives, monads, traversable/foldable, monad transformers, free monad. Material is structured as set of stub/unimplemented functions/classes and tests for them. Your objective is to make all unit tests green. It is learn-by-doing course. NICTA course was a great and interesting challenge for me to do in Haskell. I think Scala community will benefit from the similar course.