Souza Carvalho, E. de, Vizolli, I. and Rodrigues Pereira, O. (2020) “THE FRACTION APPROACH IN SIXTH GRADE MATH TEXTBOOKS APPROVED IN THE PNLD 2020”, Revista Prática Docente (Journal Practice Teacher), 5(3), pp. 1529–1546. doi: 10.23926/RPD.2020.v5.n3.1529-1546.id826.