Mária Kožuchová
Department of Pre-Primary and Primary Education, Faculty of Education, Comenius University Bratislava, Bratislava,
Slovakia

Silvia Barnová
Department of School Pedagogy and Psychology, DTI University, Dubnica nad Váhom,
Slovakia

Ján Stebila
Department of Technology, Faculty of Natural Sciences, Matej Bel University, Banská Bystrica,
Slovakia