My suggested curriculum for learning Rails is:

1. Ruby Course by Learn Street
   1. Supplement the Learn Street course with the online book Learn to Program
2. Ruby Bits by Code School
3. One Month Rails
4. railstutorial.org
5. Build a Simple Ruby on Rails Application

The pre-req for for this curriculum is a strong understanding of CSS. With a possible optional pre-req of the Twitter Bootstrap 101 tutorial by tutsplus.

If you are curious why this order, why pay someone else when you are already paying for Treehouse, well there's no a short answer to that, so keep reading maybe you'll understand my choices.

My Learn to Program Manifesto

My view of learning to program is that you can't learn everything from one source, so consulting multiple sources helps you to understand the subject matter. Some sources favor a Project-first approach and some favor a Fundamentals-first approach is lots of small exercises. I personally favor the later.

So my suggestion is to start slow and view learning Ruby on Rails as a journey, there are no shortcuts. I suggest you start with the Ruby Course by Learn Street, it's like a course that is nothing but code challenges, it just teaches you about a concept then gives you an exercise to try it out with. To help cement this knowledge I suggest you read the online book Learn to Program by Chris Pine. It's written for those brand new to program and very chapter has exercises with it. I suggest you work on those exercises in Ruby Fiddle. After you finish the book and the Learn Street course, then there are the Learn Street projects. Complete 3 beginner projects, then complete 3 intermediate projects.

Having a solid grasp of Ruby now it's time to fill in any gaps in your knowledge around some of the intermeidate concepts. I'd suggest you check out the intermediate course called Ruby Bits by Code School. The reason I'm recommending Code School's course here over Treehouse's Ruby Foundations is because there are Code Challenges after the videos in Ruby Bits in Ruby Foundations there are only quizzes. As I'm sure you probably learned with CSS, the only way to learn a language is to use it to solve problems.

Quizzes do little to cement understanding. Programming languages like natural languages tend to be use it or lose it. So you tend to forget the syntax you haven't used recently to solve a problem. Now you can offset this issue by taking notes on the syntax during the videos and then creating out your own exercises to solve and doing them in Ruby Fiddle.

Now that you are pretty solid with Ruby it's time to get an introduction to Ruby on Rails. Rails has a lot of moving parts so first a guided tour of all of these moving parts is in order, that's what One Month Rails is for. It won't teach you to build a whole Rails app in a month (despite marketing hype to the contray) however it will provide you something essential an understanding on how these parts fit together. The goal here is to get high level overview on how stuff fits together so you can spend more time worrying about the actual Ruby on Rails when you get there than worrying about tools that are merely a means to end. About the time you finish One Month Rails you probably won't get learn about Twitter Bootstrap.

You've probably already built a your site from scratch using HTML & CSS and learned all about nerding out on Typography as well as other important design concepts. If you don't know about all of those things well there's a Learning Adventure for that. So since you've got all of that down, here's the idea when you are learning Rails you should be doing just that focusing on Rails no trying to decide at which weight your body typeface looks best. So my modest proposal is that when building a Rails app for learning purposes don't worry about design.

The easiest way to not worry about design is to use Twitter Bootstrap which happens to be the very same framework that is used the Build a Basic Ruby on Rails course. So work through the Twitter Bootstrap 101 tutorial by tutsplus to get up to speed on Twitter Bootstrap. Build yourself a site with Twitter bootstrap and now would be a good time to learn about changing bootstrap's default stylings. Practice customizing everything so it looks like it was coded from scratch and put that knowledge in your back pocket for after you make your first Ruby on Rails app from scratch you will no doubt want to but your web design skills to use then.

So now that you've gone through all of that, it's time to learn how to put everything you've learned together into a functioning app with the Build a Simple Ruby on Rails Application.

Like I said at top, this is my learn to program manifesto and remember, free advice is worth what you paid for it. So I suggest you take some time and write down your thoughts about your own journey in learning to program.