RETRACTED: A system for developing creative thinking skills of primary school students by teaching them how to compose a problem (using the example of grades 1-2)Fayzullo Kasimov, Mavluda Qosimova, G’ulom Sayfullayev and Mehriniso HakimovaE3S Web Conf., 420 (2023) 06038DOI: https://doi.org/10.1051/e3sconf/202342006038