CodeAcademy has a nice class on learning the basics of Ruby.  This is not a copy of it, and really has very little value other then as a review after you have taken the class.  Basically, ignore the following, its just a reminder for me. 

1. Intro:
   
2. Control Flow:
   
3. Looping:
   
4. Arrays and Hashes:
   
5. Blocks and Sorting: