Barros, R.C. dos P. , Oliveira, C. dos S. and Ferreira, A.L.A. 2022. Geometry topics in elementary school: a look at textbook collections guided by the National Curricular Common Base. Olhar de Professor. 25, (Dec. 2022), 1–27. DOI:https://doi.org/10.5212/OlharProfr.v.25.20423.067.