ABDULLAYEVA MARIFAT SALIMJOM QIZI; ABDULLAYEV NOZIMJON KADIRALIYEVICH. THEORETICAL AND PRACTICAL FEATURES OF WORKING ON PROBLEMS IN MATHEMATICS LESSONS. International Engineering Journal For Research & Development, [S. l.], v. 5, n. 5, p. 3, 2020. DOI: 10.17605/OSF.IO/6XQ4T. Disponível em: http://iejrd.com/index.php/iejrd/article/view/1086. Acesso em: 29 apr. 2026.