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 2025 Oct. 28];5(5):3. Available from: https://www.iejrd.com/index.php/ /article/view/1086