The present study aimed to examine children's and adults' performance and strategies in volume estimations. Three tasks were designed and presented to 40 adults and 40 6th grade children who were asked to estimate: (a) the number of unit measures (bricks/rice spoons) that may be put in a container, (b) the quantity of bricks/rice, between two…

In recent decades, enhancing scientific literacy has been the ultimate goal of science education worldwide. This effort aims to develop the skills by individuals to cope with the challenges of the modern world, which requires scientific knowledge and thinking. This research study aimed to investigate and compare the scientific literacy level of…

In this study, we propose an integrated hierarchical model of computational estimation strategies (IHMCES), which can be used to organize a set of computational estimation strategies, used by a group of individuals, in strategy ranges. IHMCES can be used for the description of the repertoire, profile and flexibility of individuals regarding the…

The purpose of this research is to explore the characteristics of ethical leadership in in the field of education in Europe. In an era, when there are no transcendental principles and universally accepted values and, within organizations, a mainly "situational" and "procedural" ethics has been developed (Voyé, 1999),…

This paper refers to whole school interventions aiming to promote student learning outcomes through improving the functioning of school factors. Evaluation studies of these interventions mainly measure their impact on student learning outcomes. This paper argues for the importance of studying the mechanisms of whole school interventions through…

Data analysis is one of the most popular fields of mathematics and includes statistics and probability. These two mathematical domains are some of the most well-known, influencing everyday life and the various sciences. Their teaching lays the foundation for primary education and culminates in secondary education. Probability and statistics are…

The present study primarily aims at comparing the ELT curricula of Turkey and Greece concerning primary-level education. With this aim, a large number of articles, educational websites, theses, and dissertations, along with The Organization for Economic Co-operation and Development (OECD) reports and Ministry of National Education (MoNE) reports…

This quasi-experimental study used a repeated measures design to examine the effects of three manipulated classroom goal structures (i.e. mastery, performance-approach, performance-avoidance) on grammar achievement, perceived autonomy support, flow experience, and affect for 49 Greek elementary school students (ages 11-12; 48% girls). Over a…

The present study aimed to investigate and compare school principals' and teachers' perceptions regarding online risk behaviours in school-aged children, examining simultaneously the predictive role of their perceived self-efficacy in their perceptions under study. The participants were 237 principals and 295 teachers, mainly from Central…

The purpose of the present study was to compare the effects of two different teaching methods on students' comprehension in Mathematics: pictures with concurrent narration versus pictures with on-screen text, during teaching triangles, a lesson in Mathematics. Forty primary school children (boys and girls) selected to participate in this study.…

Health-Related Quality of Life (HRQOL) and anxiety were measured in 233 school-age siblings of individuals with Autism Spectrum Disorders (ASD) and siblings of Typically Developing (TD) children in Greece. The aim of the study was to investigate for any association between siblings' HRQOL or anxiety and parental mental health, perceived social…

The purpose of this present study is to explore the effect of an instructional approach that utilizes Information and Communication Technology (ICTs) and is based on Van Hiele's levels of geometric thought and Hoffer's skills that describe them, for the instruction of the English Alphabet. The sample of the present research consisted of Greek…

Recent studies highlight the important contribution of phonological working memory (PM) in the early stages of both native and foreign language development. However, research on the effects of PM training on language development is very limited. This study aimed at assessing the effectiveness of a PM training educational intervention as a means of…

This study explores the differences in the motivational profiles of under-achieving gifted students and high-achieving gifted and non-gifted students. In comparison to their high-achieving peers, under-achieving gifted students reported weaker motivational orientations, in both achievement and social goals, as well as in intrinsic motivation.…

This paper, which is of comparative interest in professionalism and professional development, reports on Greek primary school teachers' views on specific aspects of the aforementioned issues. A total of 234 participants provided survey data, using anonymously filled-in questionnaires during the school year 2011-2012. More specifically, by…