Dimitrakopoulou, S. A. (2025). PhD - University of Thessaly. “Developing a Teaching an Learning Trajectory for Symmetries and Geometric Transformations during the Transition from Elementary to High School”. Supervisor: Tr. Triantafyllides.
Δημητρακοπούλου Στ. (2025). Διδάκτωρ Πανεπιστημίου Θεσσαλίας -Τμήμα Π.Τ.Δ.Ε. «Αναπτύσσοντας μια Τροχιά Διδασκαλίας και Μάθησης για τη Συμμετρία και τους Γεωμετρικούς Μετασχηματισμούς κατά τη μετάβαση από το Δημοτικό στο Γυμνάσιο». Επιβλέπων: Τρ. Τριανταφυλλίδης.
Dimitrakopoulou, S. A. & Christou, K.P. (2018). Natural Number Βias in Understanding Variables in Algebra. The role of Mathematics Textbooks. Proceedings of the 11th International Conference on Conceptual Change. Epistemic Cognition and Conceptual Change, Klagenfurt, Austria.
Dimitrakopoulou, S.A. & Christou, K.P. (2018). Treatment of Variables in Greek Mathematics Textbooks and the Different Ways that Students Interpret them. Journal for Research in Mathematics Education (Erevna gia ti didaktiki ton mathimatikon). In Greek.
Dimitrakopoulou, S. A. & Christou, K. P. (2014). How students interpret literal symbols and how they appear in the greek high school textbooks. In Mathematics in School and Everyday Life - Proceedings of the 5th National Conference of Greek Association of Researchers in Mathematics Education (ENEDIM) (pp. 1-10). Florina, Greece, EN.E.DI.M., ISSN: 1792-8494, In Greek.