Andrioli, Luciana Regina, and Adriana Silva Oliveira. “Mathematics Teaching for the Kaingang in Indigenous Kindergarten Education of Paraná”. Obutchénie. Revista De Didática E Psicologia Pedagógica, vol. 4, no. 3, Dec. 2020, pp. 618-42, https://doi.org/10.14393/OBv4n3.a2020-58427.