CARR, K. The empty number line: A good idea for primary school mathematics?. Teachers and Curriculum, [S. l.], v. 2, n. 1, 2017. DOI: 10.15663/tandc.v2i1.278. Disponível em: https://tandc.ac.nz/index.php/tandc/article/view/278. Acesso em: 26 apr. 2024.