According to UNESCO, education for sustainable development (ESD) is characterized by the concern for training the skills necessary for a human individual to relate responsibly to the natural, economic and socio-cultural environment in which he lives, minimizing or completely avoiding the negative effects of actions on the quality of his life and that of others. This finality of education for sustainable development requires the prioritization of moral education and shifts the focus to the development of moral consciousness and the formation of a value system agreed and assumed by all members of a community. Because it essentializes human values, the fairy tale constitutes an ideal learning content in relation to the objectives of moral education. The wide and varied symbolism of the heroes who evolve in the fairy tale world, the situations they go through and the key tools in overcoming some crises turn the fairy tale into a source of learning with a safe and deep impact on the student, both cognitively and affective and volitional. Knowing the interdependence between the professional skills of the teacher and the training of the student's skills (Ceobanu et al., 2020, p. 277), a teacher has the duty to know what are the sources and contents of learning that optimally respond to the educational needs and interests of those whom he guides. Therefore, the teachers' conception of the educational potential of the fairy tale is a determining factor in the application or exclusion of this content from the instructive-educational/ school activities. The study we are carrying out aims to determine the level of knowledge of the educational potential of the fairy tale by teachers from schools on both banks of the Prut and provides valuable data about their beliefs regarding the effectiveness of the fairy tale in training and educating the younger generations.