Comparison of pupils‘ self-concepts in mathematics in the context of the transition to the lower-secondary school. Elementary Mathematics Education Journal, [S. l.], v. 7, n. 2, 2025. DOI: 10.5507/emej2025-7-2-505. Disponível em: https://journals.upol.cz/EMEJ/article/view/505. Acesso em: 18 jun. 2026.