VILLIERS, M. de; JUGMOHAN, J. Learners’ conceptualisation of the sine function during an introductory activity using sketchpad at grade 10 level. Educação Matemática Pesquisa, São Paulo, v. 14, n. 1, 2012. Disponível em: https://revistas.pucsp.br/index.php/emp/article/view/8750. Acesso em: 16 ago. 2024.