This article illustrates one of several learning sequences from the Interdisciplinary Mathematics and Science (IMS) Learning project, connecting science and mathematics learning in the primary school. Investigating Body Height involved a series of investigations conducted in Years 5 and 6 across six classes in one school. The project teachers…

Background: Childhood malnutrition is commonplace among poor rural communities in China. In 2012, China launched its first nationwide school-feeding program (SFP) to address this problem. This study examines the prevalence of malnutrition before and after the SFP and identifies possible reasons for the trends observed. Methods: Ordinary least…

School-age children with overweight or obesity continue to be problematic in the United States, and are associated with many health, social, and financial problems. Schools provide an excellent venue in which to promote healthy weight in students, and school nurses are well-positioned to play an essential role in controlling obesity. The number of…

Estimates of teacher "value-added" suggest teachers vary substantially in their ability to promote student learning. Prompted by this finding, many states and school districts have adopted value-added measures as indicators of teacher job performance. In this paper, we conduct a new test of the validity of value-added models. Using…

Purpose: Schools provide opportunities for children to accumulate recommended daily moderate to vigorous physical activity (MVPA). This study aimed to determine physical activity (PA) across the school day among elementary school children in Qatar. Methods: This cross-sectional study recruited 181 Grade 1 (5.8 ± 0.4 years) and Grade 4 (9.0 ± 0.5…

Background: Although many studies found a positive association between physical activity (PA) and academic performance (AP), most did not consider important variables of school setting and students' self-concept. Aims: To analyze the association between moderate-to-vigorous PA (MVPA) and AP in adolescents, considering potential confounding…

One of the central goals of school physical education (PE) is to improve physical literacy in youth to nurture their ability, confidence, and desire to be physically active for life. The aim of this study was to examine the stability of the selected PE-centered physical literacy indicators on school students' objectively measured…

Background: The accuracy of students' heights and weights measured by school staff for body mass index (BMI) screening/reporting has not been established. This study examined school staffs' measurement accuracy, comparing accuracy by staff- and student-level characteristics. Methods: School staff and researchers measured the height and weight of…

Background and purpose: Perceptions of social status can marginalize and exclude students participating in educational group work. In physical education, students may alter interactions based on the group composition. However, research has offered limited evidence to identify characteristics that can potentially predict social hierarchy. The…

The current study was designed to examine one possible weight stigma-reduction mechanism: school-level weight diversity. It was hypothesized that greater weight diversity among same-sex peers at school would attenuate the negative association between weight and academic achievement. Across 26 urban public middle schools, 5,991 sixth-grade students…

This study evaluated feasibility, acceptability, and preliminary efficacy of a 12-week "Guys/Girls Opt for Activities for Life" (GOAL) intervention on 10- to 13-year-old adolescents' body mass index (BMI), percent body fat, physical activity (PA), diet quality, and psychosocial perceptions related to PA and healthy eating.…

Purpose: Based on the self-determination theory, this study explored the predictive strengths and relative importance of basic psychological needs (BPNs; i.e., autonomy, competence, and relatedness) in physical education in physical, cognitive, and psychological outcomes among Hispanic boys and girls. Methods: Fourth- and fifth-grade Hispanic…

Education utilizes group work to increase social development, engagement, and learning outcomes of students in a less traditional way (Baines, Blatchford, & Kutnik, 2016). However, classroom research claims social status can influence the participation and engagement of group members, creating issues of inclusiveness and equity (Cohen, 1994).…

We apply "value-added" models to estimate the effects of teachers on an outcome they cannot plausibly affect: student height. When fitting the relatively simple models that are widely used in educational practice to New York City data, we find the standard deviation of teacher effects on height is nearly as large as that for math and…

Purpose: Before-school programs, one of the least studied student-related comprehensive school physical activity program (CSPAP) components, may be a promising strategy to help youth meet the physical activity (PA) guidelines. This study's purpose was to examine: (a) how much PA children accrued during a before-school running/walking club and…