#### MARIOS PITTALIS

Marios Pittalis was appointed as a lecturer in mathematics education at the University of Cyprus in August 2021. He holds a BA in Elementary Education from the University of Cyprus (2000), an MA in Mathematics Education (2004), and a Ph.D. in Mathematics Education from the same university (2008).

Dr. Pittalis has participated in several research projects funded by the European Union, including Funthink, KeyCoMath, Dalest, Calgeo, and EMETT, as well as projects funded by the University of Cyprus and the Cyprus Research Foundation. His research focuses on mathematics education and the integration of digital technologies in mathematics teaching.

He teaches in the bi-institutional master's program for the Didactics of Mathematics and the Methodology of Teaching Mathematics, co-organized with the Department of Mathematics of the National and Kapodistrian University of Athens.

He has contributed to the development of the new mathematics curriculum in Cyprus and the creation of new teaching textbooks for primary schools.

Additionally, he has authored or co-authored several papers in peer-reviewed journals and is a member of the editorial board of international peer-review journals.

**Participation in Funded Projects**

- Cognitive Acceleration through Mathematics Education with Digital Technology, funded by the Cyprus Research Promotion Foundation (Co-Principal Investigator), 2003-2004
- Using Dynamic geometry tools for the teaching of geometry in elementary and secondary schools, funded by the University of Cyprus, 2003-2004
- Differentiated Stereometry by developing an active learning Environment", funded by the University of Cyprus, 2004-2007
- Developing an Active Learning Environment for Stereometry, MINERVA project, co-funded by the European Commission, 2005-2007
- CALGEO: Teaching Calculus using Dynamic Geometry Tools, funded by SOCRATES, Comenius Action 2.1, 2004-2007
- Cognitive and Metacognitive development in relation with the didactic approaches, funded by the University of Cyprus, 2004-2007
- EMETT: European Master for European Teacher Training, co-funded by the European Commission, Erasmus- Multilateral Projects-Curriculum, 2007-2009
- KeyCoMath- Developing Key Competences by Mathematics Education, funding by Lifelong Learning Programme Centralized – Comenius Multilateral Project, 2013-2015
- TOMES (The Development of Mathematical Reasoning through Technology and Parental Engagement), funded by Lifelong Learning Programme, Comenius Regio Partnerships (in greek), 2014-2016
- Cyprus Science and Research Center (CSRC), HORIZON 2020 - «Spreading Excellence and Widening Participation – Teaming», 2017-2018.
- FunThink, Erasmus+, "Enhancing functional thinking from primary to upper secondary school", 2020-2023. UCY Coordinator.

**Journal Publications**

- Pittalis, M., Sproesser, U., Demosthenous, E., Odysseos, E. (2024). Enhancing functional thinking in grade 5-6 students through a dynamic mathematics intervention program. *Education & Information Technologies. DOI : 10.1007/s10639-024-12865-y. https://rdcu.be/dMeJ3*

-Pittalis, M., Sproesser, U., & Demosthenous, E. (2024). Graphically Representing Covariational Functional Situations in an Interactive Embodied Digital Learning Environment. *International Journal of Mathematical Education in Science and Technology. https://www.tandfonline.com/doi/full/10.1080/0020739X.2024.2327552?fbclid=IwAR0JRDo_YQcki28H0M_DXs74XHN8I_CVD7KrE-f0Ct92ODtuQYMpCBr699A_aem_AWWfq4Xoj_WvVSVX636v7S9Dpbh_uhzFPDF2lr_ROUgfFCWW8MMT16jX1Se9w7bdxxpGQpc4cP_mPpZonaf2E8M6*

- Pittalis, M. (2024). An empirically validated rational-number sense framework. *Mathematics Education Research Journal. https://doi.org/10.1007/s13394-024-00484-2*. https://link.springer.com/epdf/10.1007/s13394-024-00484-2?sharing_token=fkho73Jf8Xvf7tcB5GOQsfe4RwlQNchNByi7wbcMAY6yXgGYpY1PUSYxF6eVYe0adGH2AmAxj50JxhvhKfH7_9-zsDzPte5_jllFXCT6WpmmSy2362eawCJDNBHM9bkU4UAunLj2CTTiLJAhQfP2AEp_S8Mag4NaEn2svTOXh9w%3D (open access)

- Pittalis, M. & Drijvers P., (2023). Embodied instrumentation in a Dynamic Geometry Environment: Eleven-year-old students’ dragging schemes. *Educational Studies in Mathematics, 113, *181-205.

*https://doi.org/10.1007/s10649-023-10222-3*

- Pittalis, M. (2023). Young Students’ Arithmetic-Algebraic Structure Sense: an Empirical Model and Profiles of Students. *International Journal of Science and Mathematics Education*, *21*(6), 1865-1887. https://doi.org/10.1007/s10763-022-10333-y

- Pitta-Pantazi, D., Christou, C., Demosthenous, E., Pittalis, M., & Chimoni, M. (2022). Nurturing mathematical creativity for the concept of arithmetic mean in a technologically enhanced ‘personalised mathematics and mathematics inquiry’learning environment. *ZDM–Mathematics Education*, *54*(1), 51-66.

-Pittalis, M. (2021). Extending the technology acceptance model to evaluate teachers’ intention to use dynamic geometry software in geometry teaching. *International Journal of Mathematical Education in Science and Technology*, *52*(9), 1385-1404.

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2020). Young students’ functional thinking modes: The relation between recursive patterning, covariation thinking and correspondence relation. *Journal for Research in Mathematics Education, 51(5), 631-674.*

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2018). A longitudinal study revisiting the notion of early number sense: algrebraic arithmetic a catalyst for number sense development. *Mathematical Thinking and Learning*, *20*(3), 222-247.https://doi.org/10.1080/10986065.2018.1474533

- Pittalis, M., & Christou, C. (2013). Coding and decoding representations of 3D shapes. *Journal of Mathematical Behavior,* 32, 673-689. http://dx.doi.org/10.1016/j.jmathb.2013.08.004

- Pittalis, M., & Christou, C. (2010). Types of reasoning in 3D geometry thinking and their relation with spatial abilities. *Educational Studies in Mathematics*, *75*(2), 191-212. doi: 10.1007/s10649-010-9251-8

- Christou, C., Pittalis, M., K., Mousoulides, N. & Jones, K. (2007). Developing the 3DMath dynamic geometry software: theoretical perspectives on design. *International Journal of Technology in Mathematics Education, 13*(4), 168-174.

- Christou, C., Mousoulides, N., Pittalis, M., Pitta-Pantazi, D, Sriraman, B. (2005). An empirical taxonomy of problem posing processes. *Zentralblatt fur Didaktik der Mathematik (International Reviews in Mathematics Education), 37*(3), 149-158.

- Christou, C., Mousoulides, N., Pittalis, M., Pitta-Pantazi, D. (2005). Problem solving and posing in a dynamic geometry environment. *The Mathematics Enthusiast, A special issue on International Perspectives in Mathematics Teaching using Computer software.*

- Christou, C., Mousoulides, N., Pittalis, M., Pitta-Pantazi, D. (2004). *Proofs through exploration in dynamic geometry environments. International Journal of Science and Mathematics Education, 2*(3), 339-352.

**Book Chapters**

- Christou C., Pitta-Pantazi, D., Pittalis, M., Demosthenous. E., & Chimoni, M. (2023). Personalized mathematics and mathematics inquiry: A design framework for mathematics textbooks. In R. Leikin (Ed.), *Mathematical Challenges for all* (pp. 71-92). Cham: Springer International Publising.

- Pitta-Pantazi D., Christou C., Pittalis M. (2020) Number Teaching and Learning. In: Lerman S. (eds) *Encyclopedia of Mathematics Education. Springer*, Cham. https://doi.org/10.1007/978-3-319-77487-9

- Bokhove, C., Clark-Wilson, A. & Pittalis, M. (2018). Augmenting mathematics with mobile technology. In N. Calder, K. Larkin and N. Sinclair (Eds.), *Using Mobile Technology in the Teaching and Learning of Mathematics* (pp. 131-149). Springer (Mathematics Education in the Digital Era).

- Mousoulides, N., Pittalis, M., Christou, C., & Sriraman, B. (2010). Tracing students’ modeling processes in school. In R. Lesh et al. (Eds.), *Modeling Students’ Mathematical Modeling Competences* (pp. 119-129). Springer. doi: 10.1007/978-1-4419-056-1_10

**Conference Proceedings with Referee System**

- Frey, K., Sproesser, U., Kowalk, S., & Pittalis, M. (2024). Supporting lower secondary students' functional thinking with specific learning environments. In Evans, T., Marmur, O., Hunter, J., Leach, G., & Jhagroo, J. (Eds.), *Proceedings of the 47th International Group for the Psychology of Mathematics Education* (Vol. 2, pp. 216-223). Auckland, New Zealand: PME.

- Pittalis, M., Demosthenous, E., Odysseos, E., & Sproesser, U. (2024). Representing distance-time scenarios in a digital embodied learning environment. In D. Diamantidis, M. Karavakou, M. Grizioti, & C. Kynigos (Eds.), *Proceedings of the 16 ^{th} International Conference on Technology in Mathematics Teaching*, (pp. 207

*–*214). Athens, Greece. NKUA.

- Pittalis, M., Demosthenous, E., & Sproesser, U. (2023). Representing covariation functional situations in a tablet-enabled digital learning environment. In M. Ayalon, B. Koichu, R. Leikin, L. Rubel., & M. Tabach, (Eds.), *Proceedings of the 46 ^{th} Conference of the International Group for the Psychology of Mathematics Education* (Vol. 4, 43-50). University of Haifa, Israel: PME

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2022). Grade 3 Students' Algebraic Thinking Abilities: An empirically Validated Theoretical Framework. In J. Hodgen, E. Geraniou, G. Bolondi, & F. Ferretti (Eds.), *Proceedings of the 12th Congress of European Research in Mathematics Education (CERME12)*. Bolzano, Italy: ERME.

-Frey K., Pittalis, M., Veldhuis, M., Geisen, M., Krisakova, M., Sajka, M., Nowinska, E., Hubenakova, V., Sproesser, U., (2022). Functional thinking: conceptions of mathematics educators – a framework for analysis. *In C. Fernandez, S. Llinares, A. Gutierrez, & N. Planas (Eds.), Proceedings of the 45 ^{th} Conference of the International Group for the Psychology of Mathematics Education* (Vol. 4, p. 343). Alicante, Spain: PME.

- Pittalis, M., Christou, C., Pitta-Pantazi, D., Demosthenous, E., & Perikli, M. (2019). A framework describing students’ mathematics learning experience with a tablet-based pedagogical medium: The case of a geometry exploration. *Proceedings of the 14 ^{th} International Conference on Technology in Mathematics Teaching *(ICTMT). Essen, Germany.

-Pittalis, M., & Zacharias, I. (2019). Unpacking 9^{th} grade students’ algebraic thinking. *Proceedings of the 11th Congress of European Research in Mathematics Education*. Utrecht, the Netherlands.

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2017). Unpacking young children's functional thinking. In B. Kaur, W.K. Ho, T.L. Toh & B.H. Choy (Eds.), *Proceedings of the 41th Conference of the International Group for the Psychology of Mathematics Education* (Vol. 4, pp. 57-65). Singapore: PME.

- Nicolaou, A., Pitta-Pantazi, D., Pittalis, M. & Christou, C. (2016). The impact of an intervention on the devolpment of low-achieving sixth grade students’ abilities. In Csíkos, C., Rausch, A., & Szitányi, J. (Eds.), *Proceedings of the 40th Conference of the International Group for the Psychology of Mathematics Education: Mathematics learning across the life span* (Vol3, pp. 355–362). Szeged, Hungary: PME.

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2015). The development of student's early number sense. In K. Krainer & Naďa Vondrová (Eds.), *Proceedings of Ninth Conference of the European Research in Mathematics Education* (pp. 446-452). Prague, Czech Republic: Faculty of Education, Charles University in Prague.

- Pitta-Pantazi, D., Christou, C., Kattou, M., Sophocleous, P., & Pittalis, M. (2015). Assessing mathematically challenging problems. In K. Krainer & Naďa Vondrová (Eds.), *Proceedings of Ninth Conference of the European Research in Mathematics Education* (pp. 1052-1058). Prague, Czech Republic: Faculty of Education, Charles University in Prague.

- Pittalis, M., Christou, C., & Pitta-Pantazi, D. (2015). The predictive nature of perceived learning fit on teachers' intention to use DGS in geometry teaching. In N. Amado & S. Carreira (Eds.), *Proceedings of 12th International Conference on Technology in Mathematics Teaching *(295-303). Faculty of Sciences and Technology, University of Algarve, Faro, Portugal.

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2014). The predictive nature of algebraic arithmetic for young learners. In P. Liljedahl, S. Oesterle, C. Nicol, & D. Allan (Eds), *Proceedings of the 38th Conference of the International Group for the Psychology of Mathematics Education (Vol. 4,* 434-441). Vancouver, Canada: PME.

- Pittalis, M., Pitta-Pantazi, D., & Christou, C. (2013). A longitudinal study tracing the development of number sense components. In A. M. Lindmeijer & A. Heinze (Eds), *Proceedings of the 37th Conference of the International Group for the Psychology of Mathematics Education (Vol. 4,* 41-48). Kiel, Germany: PME.

- Pittalis, M., Christou, C., & Pitta-Pantazi, D. (2012). Enhancing prospective teachers’ technological pedagogical content knowledge in 3D shapes’ nets. In L. Gómez Chova, I. Candel Torres, & A. López Martínez (Eds.), *Proceedings of the 4th International Conference on Education and New Learning Technologies *(pp. 66-75), Barcelona, Spain.

- Pittalis, M., & Christou, C. (2011). Extending the technology acceptance model to assess secondary school teachers’ intention to use Cabri in geometry teaching. *Proceedings of the Seventh Conference of the European society for Research in Mathematics Education *(Thematic Group 14). Poland: Rseszow.

- Pittalis, M., Mousoulides, N., & Christou, C. (2009). Levels of sophistication in representing 3D shapes. In M.Tzekaki, M.Kaldrimidou & H.Sakonides (Eds.), *Proceedings of the 33 ^{rd} Conference of the International Group for the Psychology of Mathematics Education* (Vol. 4, pp. 377-384). Thessaloniki, Greece.

- Pittalis, M., Mousoulides, N., & Antreou, A. (2009). Construction of dynamic visual images of 3D geometry shapes. In C.Bardini, P.Fortin, A.Oldknow&D.Vagost (Eds.), *Proceedings of the 9th International Conference on Technology in Mathematics Teaching*. University of Metz, France: ICTMT9.

- Antreou A., Mousoulides, N., & Pittalis, M. (2009). Mathematical modelling using contemporary technological tools. In C.Bardini, P.Fortin, A.Oldknow & D.Vagost (Eds.), *Proceedings of the 9th International Conference on Technology in Mathematics Teaching*. University of Metz, France: ICTMT9.

- Pittalis, M., Mousoulides, N., & Christou, C. (2009). Levels of sophistication in 3D Geometry thinking. *Proceedings of the Sixth Conference of the European society for Research in Mathematics Education *(Thematic Group 5). France: Lyon.

- Mousoulides, N., Chrysostomou, M., Pittalis, M., & Christou C. (2009). Modeling with technology in elementary classrooms. *Proceedings of the Sixth Conference of the European Society for Research in Mathematics Education *(Thematic Group 11). France: Lyon.

- Kontoyianni, K., Kattou, M., Ioannou P., Erodotou M., Christou, C., & Pittalis, M. (2009). Perceptions on teaching the mathematically gifted. *Proceedings of the Sixth Conference of the European Society for Research in Mathematics Education *(Thematic Group 10). France: Lyon.

- Pittalis, M., Mousoulides, N., & Christou, C. (2007). Spatial ability as a predictor of geometry ability. *Proceedings of the Fifth Conference of the European society for Research in Mathematics Education *(Thematic Group 7). Cyprus: Larnaca.

- Christou, C., Pittalis, M., Mousoulides, N., Pitta, D., Jones, K., Sendova, E., & Boytchev, P. (2007). Developing an active learning environment for the learning of stereometry. *Proceedings of the 8th International Conference on Technology in Mathematics Teaching. *University of Hradec Králové: Czech Republic.

- Mousoulides, N., Pittalis, M., Christou, C., Boytchev, P., Sriraman, B., & Pitta, D. (2007). Mathematical modeling using technology in elementary school. *Proceedings of the 8th International Conference on Technology in Mathematics Teaching. *University of Hradec Králové: Czech Republic.

- Mousoulides, N., Pittalis, M., Christou, C., & Sriraman, B. (2007). Students’ modelling abilities in problem solving. *Proceedings of the 13 ^{th} International Conference on the Teaching of Mathematical Modeling and Applications (ICTMA). Bloomington: US.*

*- *Mousoulides, N., Sriraman, B., Pittalis, M., & Christou, C. (2007). Tracing students’ modeling processes in elementary and secondary school. *Proceedings of the Fifth Conference of the European society for Research in Mathematics Education (Thematic Group 13)*. Cyprus: Larnaca.

- Christou C., Jones, K., Pitta-Pantazi, D., Pittalis, M., Mousoulides, N., Matos, J.F., Sendova, E., Zachariades, T., & Boytchev. P. (2007). Developing student spatial ability with 3-dimensional applications*. Proceedings of the* *5 ^{th} Conference of the European Society for Research in Mathematics Education*. Larnaca: Cyprus.

- Mousoulides, N., Pittalis, M., & Christou, C. (2006). Improving mathematical Knowledge through modeling in Elementary Schools. *Proceedings of the 30th Conference of the International Group for the Psychology of Mathematics Education *(Vol. 4, pp. 201-208)*. *Charles University, Prague.

- Christou, C., Pittalis, M., Mousoulides, N., & Jones, K. (2005). Developing 3D dynamic geometry software: Theoretical perspectives on design. In F. Olivero & R. Sutherland (Eds.), *Proceedings of the 7 ^{th} International Conference on Technology in Mathematics Teaching* (Vol.1, pp. 69-77). Bristol, UK: University of

- Christou, C., Mousoulides, N., Pittalis, M., & Pitta-Pantazi, D. (2005). Student, Classroom, and School Variables’ Effects on Mathematical Achievement. In J. Novotna (Ed.) *International Symposium of Elementary Maths Teaching *(Vol. 1, pp. 86-94)*.* Prague: Czech Republic.

- Pittalis, M., Mousoulides, N., & Christou, C. (2005). Integrating technology in a mathematics cognitive intervention program. *Proceedings of the Fourth Conference of the European society for Research in Mathematics Education (Thematic Group 9)*. Spain: Saint Feliu de Guixols.

- Pittalis, M., Christou, C., Mousoulides, N., & Pitta-Pantazi, D. (2004). A structural model for problem posing. In M. J. Hoines, & A. B. Fuglestad (Eds.), *Proceedings of the 28 ^{th}Conference of the International Group for the Psychology of Mathematics Education* (Vol. 4, pp 49-56)

*.*Bergen, Norway.

- Christou, C., Mousoulides, N., Pittalis, M., Pitta-Pantazi, D. (2004). Proofs through exploration in dynamic geometry environments. In M. J. Hoines, & A. B. Fuglestad (Eds.), *Proceedings of the 28 ^{th}Conference of the International Group for the Psychology of Mathematics Education* (Vol. 2, pp 215-222)

*.*Bergen, Norway.

- Christou, C., Mousoulides, N., Pittalis, M., Pitta-Pantazi, D. (2003). Problem solving and posing in a dynamic geometry environment. In T. Triandafillidis and K.Hatzikiriakou (Eds.) *Proceedings of the 6th International Conference on Technology in Mathematics Teaching* (pp. 125-132). Volos, Greece: University of Thessaly.

- Pittalis, M., Christou, C., & Papageorgiou, E., (2003). Students’s ability in solving proportional problems. In M. A. Mariotti (Ed.), *Proceedings of the Third Conference of the European society for Research in Mathematics Education *(Thematic Group 3, p.1-10). Italy, Bellaria.

- Papageorgiou, E., Pittalis, M., & Mousoulides, N. (2003). 5^{th} and 6^{th} grade students’ ability in solving proportional problems. In A. Gagatsis and S. Papastavridis (Eds.), *3 ^{rd} Mediterranean Conference in Mathematics Education *(pp. 305-312). Athens: Hellenic Mathematical Society.