‘Historical analysis of illustrations of scientific instruments in Greek primary school textbooks (1878 -1950)’, in International Meeting on Critical Analysis of School Science Textbook, IOSTE (International Organisation for Science and Technology Education), Hammamet, Tunisia, 2007.

‘Development of orientation skills of 6th grade primary school students using compass and map: a case study’, in 11th Biennial Conference of European Association for Research on Learning and Instruction (EARLI) “Integrating Multiple Perspectives on Effective Learning Environments”, Nicosia, Cyprus, 2005.

‘History of Science in 20th century Greek Science Textbooks of Primary Education’, in 8th International History, Philosophy, Sociology & Science Teaching Conference “Teaching and Communicating Science”, Leeds, England, 2005.

‘History of Science (HOS) integration in 20th century Greek primary school science textbooks’, European Conference on Educational Research (ECER). European Education Research Association (EERA), Rethymnon, Crete, Greece, 2004.

‘History of Science (HOS) integration in 20thcentury Greek Primary School Science Textbooks’, in European Education Research Association (EERA), European Conference on Educational Research (ECER), Rethymnon, Greece, 2004.

Μαρία Δρακοπούλου, Σκορδούλης, Κ., και Χαλκιά, Κρυσταλλία, Συγγρ., ‘Ανάλυση Στοιχείων Ιστορίας της Επιστήμης στα Σχολικά Εγχειρίδια Φυσικής της Πρωτοβάθμιας Εκπαίδευσης κατά τον 20ό αιώνα’, in 3ο Επιστημονικό Συνέδριο Ιστορίας της Εκπαίδευσης, Πάτρα, 2004.