Jelena Matejić was born on November 18, 1994, in Niš. She is currently working as a Teaching Assistant at the Faculty of Science and Mathematics, University of Niš. Jelena has been pursuing her Ph.D. studies since November 2018, after completing her Master's studies (2016-2018) and Bachelor's studies (2013-2016) at the same institution. She attended Grammar School "Svetozar Marković" in Niš (2009-2013) and Elementary School "Njegoš" in Niš (2001-2009). Jelena has been involved in numerous academic, scientific, and educational projects. She is actively engaged in promoting science.