In an environmental crisis context which affects our societies, above all, it seems very important to us to educate the population with a new way of thinking and acting so that she moults herself as decision makers able to make enlightened choices vis-à-vis the complex situations to which the societies are more and more confronted. This article is related to a study which was carried out in the aim of identifying the strategies of educational intervention which could help the community facing food safety and survival problems, to continue to fill its needs while posing at the same time the gestures of sustainable management of their resources. The targeted population is that being in a catchment’s area of a marsh in drying, the marsh of Rugezi in Rwanda.