ATRIO CEREZO, S.; CALVO PASCUAL, M. A. The physical-chemical concept of matter in Latin American Primary Schools: When and how much is done. Education Policy Analysis Archives, [S. l.], v. 25, p. 98, 2017. DOI: 10.14507/epaa.25.3023. Disponível em: https://epaa.asu.edu/index.php/epaa/article/view/3023. Acesso em: 25 jun. 2022.