Each epoch has a burning question it needs to address. Certainly, our age has to consider the ecological question. From a pedagogic standpoint, the ecological crisis is not only a question of lack of scientific knowledge, but also of thoughtlessness. Given this assumption, it can be supposed that the priority question in environmental education is that of educating to think, and specifically educating to think by oneself. Consequently, analysis of the following issues is necessary: (a) What does educating to think in an ecological way mean? (b) How do we educate to think, that is, through what kind of learning contexts?