FP in Scala Workshop: Chapters 4 & 5

It's time to get into some juicy material in the book! We will collaboratively solve the exercises in Chapters 4 and 5 of Functional Programming in Scala by Paul Chiusano and Rúnar Bjarnason. (The ebook is available from Manning (http://www.manning.com/bjarnason/).)

Preparation: Please read chapters 4 and 5 beforehand. For better preparation, attempt the exercises.
Clone the GitHub repo (http://github.com/pchiusano/fpinscala) (uses Java 7).

Format: Dan will present a small amount of material as an overview. Participants will be divided into multiple groups that will collaboratively solve the exercises. Then the groups will present their solutions. (The format is an experiment. Your input is welcome.)

Book Discussion Forum: http://www.manning-sandbox.com/forum.jspa?forumID=805

At MIT, allow extra time to find the room. Enter the Stata Center at 32 Vassar Street, opposite the sign for 43 Vassar Street. Take the elevator (under a sign saying "Alexander W Dreyfoos Building" to the fourth floor. (If you find yourself instead in the Gates Building part of the Stata Center, return to ground floor and walk to the other end of the building to the Dreyfoos elevators.) On the fourth floor, turn left out of the elevator and then right, through double doors, straight onto orange carpet, then right.

(building doors locked? wait a few minutes for someone to go in or out)