CTS approach and experimental activities: paths for the articulation of knowledge in the teaching of chemistry
Experimental activities; CTS approach; Waks’ Responsibility Cycle
Much progress has been made in research involving the STS approach in chemistry teaching in different areas, seeking to overcome the traditional teaching model from the insertion and discussions about the important aspects of this approach in the classroom context. However, few works bring the experimental activity in the light of the STS approach so that the student can have a greater understanding of the existing interrelationships between Science-Technology-Society, helping him in learning scientific and technological concepts, considering the socio-historical construction of knowledge. Given the above, this work aims to analyze the contributions of experimental activities to the understanding of STS relationships and the knowledge associated with each of these instances in chemistry teaching from a socio-historical perspective, aiming at a critical formation of students. This research will have a qualitative approach, from the descriptive and interpretative method. As participating subjects, we will have the teacher/researcher and 40 students from the third grade of high school in the Chemistry curricular component of a public school located in the municipality of Vitória de Santo Antão, Pernambuco, Brazil. As instruments, we will use video recording, participant observation and student activity reports. As a theoretical-methodological contribution, a didactic sequence will be developed in the light of Waks' Responsibility Spiral (1992), contemplating the problematizing experimental activity (FRANCISCO JÚNIOR; FERREIRA; HARTWIG, 2008) structured from the Activity Theory (LEONTIEV, 2004) . For data analysis, we will use the assumptions of Mortimer and Scott's Analysis of Discursive Interactions (2002).