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Marios Xenos

Marios Xenos is a PhD Student


  • Marios Xenos is a Computer Science Teacher and PhD Student in "Supporting students' constructionist activities with Artificial Intelligence infrastructures". 
  • He holds a Master Degree in Teaching with Digital Technologies.
  • Professionally, he was Database Designer and Administrator.
  • Since 2003 he has been a teacher in Secondary Education in public section.
  • As a ETL's member he has participated in European Research Projects "MetaFora", "Mc Squared" and "ER4STEM".
  • His research interests include the recognition of learning difficulties in front of computer, the study of student-computer interaction, and the exploitation of digital technologies in the educational process.
  • He designs and implements educational robotics activities through game-based learning.

Contact Information:

Phone: 210 7277838 

E-mail: mariosxenos@ppp.uoa.gr

Christina Gkreka

Christina Gkreka is a PhD Student


  • Christina Gkreka holds a degree of Primary Education at University of Athens.
  • In 2018 she completed her postgraduate studies in the "Educational Theory, Practice and Evaluation" Postgraduate programme with expertise in "Digital Technologies in Education".
  • Since 2017she is ETL's partner on subjects related to the educational use of Digital Technologies.
  • As ETL's partner, she has participated in the European Research Project "ER4STEM" (No. 665972-Horizon 2020).
  • Since 2019 she has been a PhD student and her research interests relate to the design of educational activities for teaching mathematics, development of spatial abilities and spatial and geometric problem solving skills.
  • She is working at the field of STEM education as an educator and she is also involved in the design of educational robotics activities.

Contact info:

Phone: 210 7277838 

Email: xristgreka@ppp.uoa.gr

Myrto Karavakou

Myrto Karavakou is a PhD Student


  • Myrto Karavakou holds a bachelor degree of Department of Mathematics of National University of Athens with expertise in “Mathematics Education”.
  • In January 2019 she completed her postgraduate studies in Mathematics Education postgraduate program (NKUA).
  • Since July 2019, she is a PhD student and a member of ETL. Her PhD thesis is titled “Learning Innovations with Programmable Mathematics: the case of periodicity”. 
  • She works at the field of Mathematics Education and, recently, as a STEM and Educational Robotics Teacher.
  • Her research interests are focused on designing learning activities using digital, programmable tools aiming to create opportunities for students to produce personal meanings on mathematical concepts. On the same time, she aims at fostering students’ computational thinking and creativity.

Στοιχεία Επικοινωνίας:

Τηλέφωνο: 210 7277838 

Ηλεκτρονική Διεύθυνση: karavak@ppp.uoa.gr

Katia Schiza

Katia Schiza is a PhD Student


  • Katia Schiza graduated of the Department of Mathematics of the National and Kapodistrian University of Athens (NKUA). She followed the direction of Applied Mathematics and obtained a Specialization in Mathematics Teaching.
  • In July 2022, she completed her postgraduate studies on "Digital Transformation and Educational Practice". This Master’s Degree was awarded jointly by the cooperating Institutions of UNIWA, NKUA and ASPETE with a grade of 9.88/10.
  • From December 2022, she is a PhD candidate in Mathematics Education. The title of her PhD thesis is: "Mathematical programming competence developed through the creation and investigation of 3D digital models".
  • She is a member of the Educational Technology Lab since 2021 and she has participated in the European Research Projects: "GAMMA" (GAMe-based learning in MAthematics - Erasmus+), "Exten.(D.T.)2" (Extending Design Thinking with Emerging Digital Technologies - HORIZON-CL2-2021) and "TransEET" (Transforming Education with Emerging Technologies - HORIZON-WIDERA-2021).
  • She works in the field of secondary education in Mathematics.
  • Her research interests are focused on the educational design of learning activities for teaching mathematics using programming tools, aiming mainly for -beyond students' meaning making and skill cultivation- the development of students' mathematical competence. She is interested in and focuses on the role of mathematics in the age of digitization and the role that mathematical competence could play concerning the challenges of the 21st century.

Contact Information:

Phone: 210 7277838 

E-mail: katiaschiza@eds.uoa.gr 

Maria-Stella Nikolaou

Maria-Stella Nikolaou is a PhD Student


  • Maria-Stella Nikolaou holds a degree from the Department of Informatics and Telematics of the Harokopio University of Athens.
  • In September 2022 she successfully completed her postgraduate studies at the Inter-institutional MSc "Digital Transformation and Educational Practice" of the Department of Computer Engineering & Computer Science of UNIWA, the Department of Secondary Education of NKUA and the Department of Education of ASPETE.
  • Since September 2022 she is a member of the Educational Technology Laboratory (EET) and from January 2023 she is a PhD candidate on "Cultivating Computational Thinking Skills in Secondary School Students, using and adapting appropriately designed Digital Games".
  • She works in the field of Computer Science Education, Programming and Web Design.
  • Her research interest focuses on the cultivation of Computational Thinking skills through the design of digital classification games, with an emphasis on technologies that embody kinesthetic interactions.

Contact Information:

Phone: 210 7277838 

E-mail: msnikolaou@eds.uoa.gr