Towards the beginning of the chapter Andres is talking about a week of programs that allow students to catch up on credits. The students have a choice to participate in an activity for a week that the teachers create. They are able to earn a lot of credits by participating or the students could simply have a week off.
This idea seems like it would be a lot of fun. It also shows how doing an activity that gets students out of the normal classroom setting can motivate them. This concept could be used in normal classrooms. You could make it a point to plan a time to have a class outside, or taking your class on a field trip somewhere within their community.