O uso do estudo de caso para explorar métodos de tratamento de esgoto em sala de aula.

Abstract

Brazil holds one of the largest freshwater potentials on the planet, but there is an unequal territorial distribution of this resource so essential to life, due to great climatic diversity and its extensive territory. However, although there is an advanced legislation aimed at the care of the environment, there is still a little efficient applicability to the laws. The lack of basic sanitation services endangers the quality of water available for consumption, affecting human health, resulting in a higher expenditure of investments that could be directed to health and education of the population. This objective research through the use of case study explores sewage treatment methods, involving the contextualization of the teaching of environmental chemistry and positioning of the students in the face of a problematic presented. It was used in this research the case of type learning-based problems. The methodological procedure began with the application of a previous questionnaire, followed by a lecture addressing the methods of sewage treatment and soon after presented the case "Bringing the water from the mud to the nobility", to propose in teamwork the Solutions to the case, expressing them through textual production, concluding with the application of a questionnaire to ascertain learning. It was verified in the use of the case study method the possibility of exploring the types of sewage treatment, in addition to the method providing contributions to a teaching that develops skills and competences focused on scientific knowledge, the development of critical-reflective thinking, besides to exploring the relationship of environmental chemistry teaching with daily life and citizen formation.