Tabela periódica em aplicativos educacionais livres: características e possibilidades metodológicas para o ensino na abordagem CTSA

Abstract

In this research, we reflect on the teaching of the Periodic Table (TP) in Elementary School II (EF) and the contributions of educational mobile apps inserted in this planning. In a qualitative approach we look for investigate a sequence of classes elaborated guided by Historical-Critical Pedagogy (PHC), focusing on Science, Technology, Society and Environment (CTSA). The participants were students from two classes of the 9th grade of a public school located in the city of Inhumas-GO, and teachers from the teaching State network of Goiás. The data collection instruments used were questionnaires, audio and video recordings during classes, and the researcher's field diary. The results were organized and discussed through content analysis. For the analysis of the results, the following emerging categories were defined: 1) Weaknesses in teaching the Periodic Table; 2) Relationship between the contents of the Periodic Table and daily life. The results show that were given to the participants a historical view of the PD development process, in addition to establishing relationships between the presence of chemical elements in their lives. As an educational product, an instructional didactic material was developed to support teachers, made by a sequence of four activities and a video lesson with the ‘electronic waste’ theme.