Gonçalves, F.P., Silveira, R.A. da and Piaia, L. 2021. Problematization by a Chemistry Teacher Trainer in the Study of Thematic Approach: a Constituent Analysis of a Communication Process. Brazilian Journal of Research in Science Education. (Sep. 2021), e33368, 1–. DOI:https://doi.org/10.28976/1984-2686rbpec2021u10991128.