Frizzarini, C. R. B. and Leme da Silva, M. C. (1) “Calkins´ geometric knowledge and its appropriation in teaching programs of school groups in the state of São Paulo, Brazil”, Revista Brasileira de História da Educação, 16(3[42]), pp. 10 - 35. Available at: https://periodicos.uem.br/ojs/index.php/rbhe/article/view/40740 (Accessed: 15September2025).