Açaí seeds are quite abundant in the municipality of Macapá, among others, constituting
residues from the local açaí juice production industry, this residue can be transformed into
activated carbon and used as an adsorbent for mixture separation processes. On the other
hand, much knowledge about these concepts is little explored in textbooks, which rarely
present proposals for experimentation and contextualization in the classroom. This work aims
to contribute in this sense, in this way, at the first moment, the manufacture and activation of
charcoal from açaí stones was made, subsequently making two prototypes of filters that can
be used for educational purposes. In the second moment, analyzes were carried out in didactic
books in order to verify how concepts are being approached, related to the contents of
substances, phases (mixtures) and separation of mixtures, taking into account the
contextualization and practical experimentation, and later on, for proposing practical class
methodologies. and experimental ones that can be used by teachers and researchers, to plan
and execute inventions in the classroom. The results showed the feasibility of using the
activated carbon of açaí as an adsorbent agent in the process of filtration and separation of
mixtures, in addition to pointing out that the explored concepts are little used in textbooks in
order to propose practical and experimental activities in the classroom, that allow the student
to internalize the concepts passed on in the best way. The work is important, as it proposes
practical interventions through elements of local daily life and low-cost materials, which can
be applied even in schoolchildren with few or no resources for the development of
pedagogical activities.
|
