Chernyavskikh, Svetlana D., Maxim A. Velichko, Irina B. Kostina, Yulia P. Gladkikh, Lyudmila V. Krasovskaya, and Olga N. Satler. “Improving Educational Process Quality in the Lessons of Natural and Mathematical Cycle by Means of Stem-Training”. Cypriot Journal of Educational Sciences 13, no. 4 (December 26, 2018): 501–510. Accessed May 19, 2024. https://www.un-pub.eu/ojs/index.php/cjes/article/view/3857.