Dr. Stamatios Papadakis has been a postdoctoral researcher in Educational Technology, with emphasis on mobile learning, at the Department of Preschool Education at the University of Crete, Greece since 2016. He has graduated from the Department of Informatics, Athens University of Economics and Business, Athens, Greece. In 2006 he completed a Master’s degree (M.Ed.) in Pre-school Education and Educational Design at the University of Aegean, Rhodes, Greece at the School of Humanities, Department of Pre-school Education. In 2016, he completed a Ph.D. at the University of Crete, Department of Education in Rethymnon, Greece under the supervision by Prof. Zaranis Nikolaos. He has worked as an adjunct Lecturer in Education teaching Informatics (2017-2018) at the Department of Preschool Education, School of Education, University of Crete, Greece and Didactics in Programming (2017-2018) at the Department of Computer Sciences, School of Sciences and Engineering at the University of Crete, Greece. His scientific and research interests include the study of mobile learning, especially on the use of smart mobile devices and their accompanying mobile applications (apps) in the use of Preschool and Primary Education, focusing on the development of Computational Thinking and students’ understanding of numbers. Furthermore, his research interests also include ICT in education, novice programming environments and teaching of programming in Primary and Secondary Education (novice programmers).