Here you can download the presentation I used in the Agile Development and Rails courses I taught in the University of Oviedo (HCI-RG group). They correspond to a 6 hours-class (the whole course was one week length). It is a very short introduction to both agile development and the Rails framework so I had to leave many things out. I was very interested in the part of basic good development practices because I think these are easy to learn and worthy for everyone.