Recently a novel instrument -- the Core Academic Language Instrument (CALS-I) -- aimed at testing a constellation of school-relevant English language skills was developed and validated for use in the United States (Uccelli, Barr, Dobbs, Galloway, Meneses and Sánchez, 2015. Core Academic Language Skills: An expanded operational construct and a…

Bullying is a peer relational problem that can inflict psychological harm onto both those who are victimized and those who witness it occur. Fostering a positive classroom environment is an important protective factor in preventing bullying. Authoritative classroom climates may protect victimized and bystander youth from negative mental health…

This study explores the relationship between the time children spend outdoors with critical social and health factors. We use questionnaire data from the 2017-2018 Health Behaviour in School-aged Children (HBSC) study in Iceland, focused on children in the 6th, 8th, and 10th grades. All Icelandic schools with pupils in these classes were invited…

Drawing on cross-cultural qualitative research in comprehensive (primary and middle) schools in Finland and Korea, this article explores students' peer relationships as well as tensions and negotiations that occur between student agency and school control. Based on school observations and interviews with students and teachers, this article…

Mathematics related affect turn from positive to negative during comprehensive school years worldwide. There is a clear need to find solutions to the problem. However, some gaps and problems appear in the methodologies and the common approaches used in the field. This article discusses five studies addressing affective development, challenges some…

To examine cross-cultural differences in behavior upon witnessing peer victimization and the reasons behind the behavior, this study evaluated the responses of early adolescents from both the United States and Taiwan. Two questions were addressed: (1) Do adolescents in Taiwan and in the United States differ in their willingness to help peer…

The purpose of this mixed-methods study was to explore how seventh graders in a suburban school in the United States and sixth graders in an urban school in Taiwan developed argumentation skills and science knowledge in a project-based learning environment that incorporated a graph-oriented, computer-assisted application (GOCAA). A total of 42…

Numerical understanding and arithmetic skills are easier to acquire for whole numbers than fractions. The "integrated theory of numerical development" posits that, in addition to these differences, whole numbers and fractions also have important commonalities. In both, students need to learn how to interpret number symbols in terms of…

Following a sociocultural perspective, this study investigates how students who have grown up using the SI (Systeme International d'Unites) (metric) or US customary (USC) systems of units for everyday use differ in their knowledge of scale and measurement. Student groups were similar in terms of socioeconomic status, curriculum, native language…

Social coping and self-concept were explored among Irish (n = 115) and American (n = 134) grades 3-8 students. Denying one's giftedness or the impact it has on peer relationships were associated with poor self-concept in both samples. Among Irish students, denying giftedness was associated with more positive self-concept when paired with a high…