STS Approach and CHAT: pathways to articulate knowledge for Chemistry teaching
Polymers and their Characteristics; Activity Theory; CTS approach.
In our investigation, the general objective was to analyze the contributions of Activity Theory, proposed by Engeström, in approaching the topic of polymers and their implications, as a basis in Science, Technology and Society (CTS). The methodological trajectory consisted of the construction and development of a sequence of activities with high school students at a State Technical School in the city of Vitória de Santo Antão – PE. The analysis of the results allowed the verification of the viability of the didactic sequence (SD) to address the theme in its scientific, technological and social aspects. Following the moments described in the methodology, we highlight the didactic interventions in the classroom through digital resources, such as educational videos, the experimental proposition, the technical visit to the plastic factory in the city where the research was developed and rich discursive interactions throughout of the development of SD. Analysis of the information collected revealed learning gaps. However, it also showed signs of appropriation of scientific, technological and social knowledge by students, pointing to the constructive and educational potential of SD. The results indicated advances in the understanding of the topic and a growing awareness among students about the importance of investing in awareness-raising policies regarding the use and disposal of plastic materials. We believe that our investigation made it possible to monitor and plan adjustments in teaching work, overcoming obstacles and identifying conceptual and practical gaps, seeking to overcome the traditional teaching model through insertion and discussions about the important aspects of this approach in the classroom context.