Tortola, Emerson, and Cristiana Fadin. “MATHEMATICAL MODELLING AND ALGEBRAIC THINKING IN THE 6th GRADE OF ELEMENTARY SCHOOL”. Revista Paranaense de Educação Matemática, vol. 10, no. 23, Dec. 2021, pp. 98-123, https://doi.org/10.33871/22385800.2021.10.23.98-123.