IN JOURNALS OR CONFERENCES
1. From the circle’s tangent to a curve’s tangent.Is the cognitive development continuous?
with I., Biza and T., Zachariades
4th European Symposium on Conceptual Change, European Association for Research on Learning and Instruction: Conceptual Change: Philosophical, Historical, Psychological, and Educational Approaches (Delphi, 2004)

2. Conceptual Change in Advanced Mathematical Thinking
with I., Biza and T., Zachariades
Fourth Congress of the European Society for Research in Mathematics Education (17-21 Feb. 2005) in Sant Feliu de Gu?xols, Spain

3. The Embodied, Proceptual, and Formal Worlds in the Context of Functions
with C., Christou, D., Pitta-Pantazi and T., Zachariades
Canadian Journal of Science Mathematics & Technology Education
(V5,I2, June 2005)

4. Students’ Thinking About Fundamental Real Numbers Properties
with E., Giannakoulias and T. Zachariades
Fifth Congress of the European Society for Research in Mathematics Education (17-21 Feb. 2005) in Larnaca, Cyprus

5. Teaching Analysis in Dynamic Geometry Environments
with I., Biza and D., Diakoumopoulos
Fifth Congress of the European Society for Research in Mathematics Education (17-21 Feb. 2005) in Larnaca, Cyprus

GREEK PUBLICATIONS
1. Dissertation for the Master’s degree (November 2001)
‘Students problems in understanding the fundamental concepts of Calculus’
(Supervisor T. Zachariades, members of the supervising team S. Negrepontis, E. Giannakoulias)

2. Conceptual Change in Mathematical Analysis: From the circle’s tangent to curve tangent.
with T., Zachariades and I., Biza
Greek National Conference of Cognitive Psychology, (Alexandroupolis-Greece, 2004)

BOOKS
Teaching Calculus using Dynamic Geometric Tools (2007 in three languages Greek, English and Bulgarian)
Edited by: Theodossios Zachariades, Efstathios Giannakoulias, Irene Biza, Dionisios Diacoumopoulos & Alkeos Souyoul (and the local coordinator for each language version)
National & Kapodistrian University of Athens, Greece; University of Crete, Greece; University of Southampton, United Kingdom; University of Sofia, Bulgaria; University of Cyprus, Cyprus
[Contributors: T. Zachariades, P. Pamfilos, K. Jones, R. Maleev, C. Christou, E. Giannakoulias, R. Levy, L. Nikolova, G. Kyriazis, D. Pitta-Pantazi, I. Biza, D. Diacoumopoulos, A. Souyoul, N. Bujukliev, Ν. Mousoulides, & Μ. Pittalis]
[These books came as an outcome from the CalGeo project 118982-CP-1-2004-1-GR-COMENIUS-C21 which was conducted with the support of the European Commission in the framework of Socrates-Comenius programme]