Pinto Leivas, José Carlos. “SOLVING OF PROBLEM AND ADDITION AND SUBTRACTION OPERATIONS IN THE CONTINUING EDUCATION OF TEACHERS FROM THE EARLY YEARS OF ELEMENTARY SCHOOL”. Revista Prática Docente (Journal Practice Teacher) 4, no. 1 (July 15, 2019): 5–10. Accessed May 19, 2024. http://periodicos.cfs.ifmt.edu.br/periodicos/index.php/rpd/article/view/544.