This study was conducted in a rural area endemic for schistosomiasis in Minas Gerais, Brazil. The objective was to determine the relationship between an environmental and health education program for schistosomiasis, implemented for teachers and students from the state secondary school in the village of Boa União, and the subsequent actions of its participants in regards to the environment and the illness. An important difference in this program is its perspective that it is not merely the implementation of instrumental and cognitive knowledge of the environment and illness, but an approach in which subjects are asked to question and investigate their perception of reality, the environment, and the illness. The study demonstrated that a change in attitude could occur from reflection on one's experience in relation to both the environment and diseases endemic it.