Abdullayeva Marifat Salimjom qizi, Abdullayev Nozimjon Kadiraliyevich. THEORETICAL AND PRACTICAL FEATURES OF WORKING ON PROBLEMS IN MATHEMATICS LESSONS. IEJRD - International Multidisciplinary Journal [Internet]. 2020 Aug. 11 [cited 2026 May 26];5(5):3. Available from: https://www.iejrd.com/index.php/iejrd/article/view/1086