Georgieva Д. A competence-based methodological framework for meaningful derivation of formulae for areas, surface areas and volumes in the preparation of future mathematics teachers. Mathematics and Education in Mathematics, [S. l.], v. 55, p. 163–170, 2026. DOI: 10.55630/mem.2026.55.163-170. Disponível em: https://smb.math.bas.bg/mem/index.php/memjournal/article/view/241. Acesso em: 6 oct. 2026.