The Relationship Between the Amount of Time Spent in the Block Center and Gender Differences in Preschool Children’s Spatial Performance

The current study investigated whether there is a relationship between the amount of time children spend in the block center and their spatial skills, as well as the gender differences in the amount of time children spend in the block center and in their spatial skills. In addition, other factors influencing spatial skills were examined (e.g. child’s age, parents’ level of education). Using a correlational quantitative design, 75 preschoolers in eight Head Start classrooms were observed three times during their free play time. An existing instrument was used (TOSA: Verdine & Golinkoff, 2018) to measure children’s spatial skills. In addition, children’s parents reported the amount of time children played with spatial toys at home. Boys spent more time playing in block center than girls, however, there was no significant difference between boys’ and girls’ spatial skills. Children who spent more time in the block center scored higher in the spatial test, and a trend emerged suggesting time in the block area might benefit girls more than boys. Child’s age and parents’ level of education were predictors of spatial skills, but they did not moderate the relationship between spatial skills and the amount of time children spent in block center. The findings highlight the potential of playing with blocks in developing and improving spatial skills. Teachers and administrators should provide more opportunities for children to improve their spatial skills, especially children who are from low SES families. This study had some limitations such as the small sample size and the limited observation time. There is a need for more investigations and experiment to find strategies to engage children in spatial play and support the improvement of their spatial skills

Effects of Gender and Type of Board Game on 4-year-olds Engagement in Board Games

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Book-Tasting Presentations within an Early Childhood Educator Preparation Program

This manuscript discusses a teacher education experience utilized within an early childhood literacy methods course named, book-tasting presentation. Existing literature suggests that book-tastings, in a variety of forms, are evident at the PK-12 level, yet not prevalent in higher education and specifically, teacher education. The aim of the book-tasting presentations is to expose early childhood teacher candidates to diverse, high-quality picturebooks and their application in early childhood settings to cook up a love of literacy among our youngest readers. This is achieved through the Experiential Learning Cycle as teacher candidates are tasked to experience, reflect, think, and act throughout this exercise. Facilitated in a conducive, academic environment with access to rich, instructional materials and intentional, learning experiences, teacher candidates have authentic opportunities to reflect on their professional practice regarding the use of picturebooks in early childhood settings

Global variation in diabetes diagnosis and prevalence based on fasting glucose and hemoglobin A1c

Fasting plasma glucose (FPG) and hemoglobin A1c (HbA1c) are both used to diagnose diabetes, but these measurements can identify different people as having diabetes. We used data from 117 population-based studies and quantified, in different world regions, the prevalence of diagnosed diabetes, and whether those who were previously undiagnosed and detected as having diabetes in survey screening, had elevated FPG, HbA1c or both. We developed prediction equations for estimating the probability that a person without previously diagnosed diabetes, and at a specific level of FPG, had elevated HbA1c, and vice versa. The age-standardized proportion of diabetes that was previously undiagnosed and detected in survey screening ranged from 30% in the high-income western region to 66% in south Asia. Among those with screen-detected diabetes with either test, the age-standardized proportion who had elevated levels of both FPG and HbA1c was 29-39% across regions; the remainder had discordant elevation of FPG or HbA1c. In most low- and middle-income regions, isolated elevated HbA1c was more common than isolated elevated FPG. In these regions, the use of FPG alone may delay diabetes diagnosis and underestimate diabetes prevalence. Our prediction equations help allocate finite resources for measuring HbA1c to reduce the global shortfall in diabetes diagnosis and surveillance

Worldwide trends in underweight and obesity from 1990 to 2022: a pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults

Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. Methods We used data from 3663 population-based studies with 222 million participants that measured height and weight in representative samples of the general population. We used a Bayesian hierarchical model to estimate trends in the prevalence of different BMI categories, separately for adults (age ≥20 years) and school-aged children and adolescents (age 5–19 years), from 1990 to 2022 for 200 countries and territories. For adults, we report the individual and combined prevalence of underweight (BMI <18·5 kg/m2) and obesity (BMI ≥30 kg/m2). For schoolaged children and adolescents, we report thinness (BMI <2 SD below the median of the WHO growth reference) and obesity (BMI >2 SD above the median). Findings From 1990 to 2022, the combined prevalence of underweight and obesity in adults decreased in 11 countries (6%) for women and 17 (9%) for men with a posterior probability of at least 0·80 that the observed changes were true decreases. The combined prevalence increased in 162 countries (81%) for women and 140 countries (70%) for men with a posterior probability of at least 0·80. In 2022, the combined prevalence of underweight and obesity was highest in island nations in the Caribbean and Polynesia and Micronesia, and countries in the Middle East and north Africa. Obesity prevalence was higher than underweight with posterior probability of at least 0·80 in 177 countries (89%) for women and 145 (73%) for men in 2022, whereas the converse was true in 16 countries (8%) for women, and 39 (20%) for men. From 1990 to 2022, the combined prevalence of thinness and obesity decreased among girls in five countries (3%) and among boys in 15 countries (8%) with a posterior probability of at least 0·80, and increased among girls in 140 countries (70%) and boys in 137 countries (69%) with a posterior probability of at least 0·80. The countries with highest combined prevalence of thinness and obesity in school-aged children and adolescents in 2022 were in Polynesia and Micronesia and the Caribbean for both sexes, and Chile and Qatar for boys. Combined prevalence was also high in some countries in south Asia, such as India and Pakistan, where thinness remained prevalent despite having declined. In 2022, obesity in school-aged children and adolescents was more prevalent than thinness with a posterior probability of at least 0·80 among girls in 133 countries (67%) and boys in 125 countries (63%), whereas the converse was true in 35 countries (18%) and 42 countries (21%), respectively. In almost all countries for both adults and school-aged children and adolescents, the increases in double burden were driven by increases in obesity, and decreases in double burden by declining underweight or thinness. Interpretation The combined burden of underweight and obesity has increased in most countries, driven by an increase in obesity, while underweight and thinness remain prevalent in south Asia and parts of Africa. A healthy nutrition transition that enhances access to nutritious foods is needed to address the remaining burden of underweight while curbing and reversing the increase in obesit

Global variations in diabetes mellitus based on fasting glucose and haemogloblin A1c

Fasting plasma glucose (FPG) and haemoglobin A1c (HbA1c) are both used to diagnose diabetes, but may identify different people as having diabetes. We used data from 117 population-based studies and quantified, in different world regions, the prevalence of diagnosed diabetes, and whether those who were previously undiagnosed and detected as having diabetes in survey screening had elevated FPG, HbA1c, or both. We developed prediction equations for estimating the probability that a person without previously diagnosed diabetes, and at a specific level of FPG, had elevated HbA1c, and vice versa. The age-standardised proportion of diabetes that was previously undiagnosed, and detected in survey screening, ranged from 30% in the high-income western region to 66% in south Asia. Among those with screen-detected diabetes with either test, the agestandardised proportion who had elevated levels of both FPG and HbA1c was 29-39% across regions; the remainder had discordant elevation of FPG or HbA1c. In most low- and middle-income regions, isolated elevated HbA1c more common than isolated elevated FPG. In these regions, the use of FPG alone may delay diabetes diagnosis and underestimate diabetes prevalence. Our prediction equations help allocate finite resources for measuring HbA1c to reduce the global gap in diabetes diagnosis and surveillance.peer-reviewe

Gender differences in preschool teachers\u27 math talk with children

Various studies have found differences in males’ and females’ mathematical achievement, with boys’ achievement scores higher than girls’. However, the difference in mathematical achievement does not appear to exist yet when children are younger (e.g., in preschool or kindergarten), but rather we begin to observe this gender achievement gap in middle school and high school. These findings raise the question about what is happening in pre- and elementary school that may cause this achievement gap to appear. Research suggests that there is a relationship between the amount of teachers’ math talk and preschool children’s conventional mathematical knowledge. Studies suggest that teachers’ math talk is significantly related to the growth of mathematical knowledge. The amount of input boys and girls receive from preschool teachers’ can be one of the causes of the gap in their math achievement in later years. Various studies measured the amount of teachers’ math talk in the classroom however there are very few research that investigated the influence of gender on the amount of preschool teachers’ math talk. The current study investigated the effects of children’s gender on preschool teachers’ math talk. The purpose of the study was to investigate the amount of preschool teachers’ math talk with children as well as the effect of children’s gender on the amount and type of preschool teachers’ math talk. The data was collected as part of another study which aimed to create a database of quality early childhood practices. The participants of the current study were 2 teachers (1 teacher and 1 assistant teacher) in a preschool classroom and the 16 (7 girls. 9 boys) children in their classroom. Permissions were obtained from teachers and children’s families. The teachers were videotaped during the free play time and the videos were coded for the amount and type of math talk using Observational Coding Matrix which is a checklist of 8 different math categories. The results showed a statistically significant difference for the amount of total math talk that boys received comparing to girls, in favor of the boys. Although, boys received more math talk in most of the math categories, the operation was the type in which the gender difference was statistically significant. Although the sample size was small the gender difference was statistically significant, which shows the importance of studies that investigate the gender differences in teachers’ math talk

Using Number Games to Support Mathematical Learning in Preschool and Home Environments

Research Findings: This study evaluated the effects of an early mathematics intervention designed to engage preschool children, their teachers, and their families in an interactive mathematics game. Previous research shows that playing this specific type of linear board game results in increased numerical skills and understanding in young children under controlled conditions. The current study explores the game’s effectiveness under more natural conditions–a classroom-based intervention with teachers and a related family engagement component. A pilot study informed a larger-scale experiment, comparing outcomes in multiple skill domains (verbal counting, counting on, number line estimation, numeral magnitude, and numeral recognition) with those of control group children who played memory matching games. The analysis sample included 256 children in classrooms that were randomly selected from volunteer teachers and randomly assigned within 10 centers to either the treatment group (mathematics games, 23 teachers) or the comparison condition (matching games, 22 teachers). The intervention resulted in positive impacts for numeral identification, but not the other domains. The number of math games played was positively associated with verbal counting. No impact of family game play was found; however, implementation challenges could have influenced this finding. Practice or Policy: Including simple, research-informed mathematics board games in the preschool classroom can support mathematical learning. Future work must include families and educators in the design of these supports