Differentiation hypotheses concern changes in the structural organization of cognitive abilities that depend on the level of general intelligence (ability differentiation) or age (developmental differentiation). Part 1 of this article presents a review of the literature on ability and developmental differentiation effects in children, revealing…

Do social cognition and epistemological understanding promote elementary school children's experimentation skills? To investigate this question, 402 children (ages 8, 9, and 10) in 2nd, 3rd, and 4th grades were assessed for their experimentation skills, social cognition (advanced theory of mind [AToM]), epistemological understanding (understanding…

Learning of the mathematical number line has been hypothesized to be dependent on an inherent sense of approximate quantity. Children's number line placements are predicted to conform to the underlying properties of this system; specifically, placements are exaggerated for small numerals and compressed for larger ones. Alternative hypotheses…

Researchers, the authors state, link play to cognitive and affective processes important for a child's development and overall well-being. In this article, the authors examine the relationships involving pretend play, coping, and subjective well-being (the last of which they conceptualize as positive affect--positive mood--and life satisfaction)…

This paper presents initial results from a pilot evaluation of the pre-K component of a new school-based intervention strategy (Social, Emotional, and Cognitive Understanding and Regulation in education, SECURe) for pre-kindergarten through 3rd grade that is designed to build skills in social-emotional learning (focusing on executive function and…

Deficits in basic numerical processing have been identified as a central and potentially causal problem in developmental dyscalculia; however, so far not much is known about the typical and atypical development of such skills. This study assessed basic number skills cross-sectionally in 262 typically developing and 51 dyscalculic children in…

The authors took a population-based approach to testing how commonly studied neighborhood socioeconomic conditions are associated with the language and cognitive outcomes of residentially stable rural and urban children tracked from kindergarten (ages 5-6) to Grade 4 (ages 9-10). Child-level kindergarten Early Development Instrument (EDI) data…

The Department of Early Learning (DEL), in partnership with the Office of Superintendent of Public Instruction (OSPI) and Thrive Washington, has published the Early Learning and Development Guidelines (guidelines) for children from birth through third grade. The guidelines replace the Early Learning and Development Benchmarks, which were first…

The authors describe a five-day, literature-based thematic unit for second-graders on positive character traits, such as friendship, respect, perseverance, honesty, and cooperation, and how four books by Janell Cannon are integral to children's learning. (The authors offer suggestions throughout for adapting the unit for younger children.) They…

The current study examines the social and behavioral development of school-age children with different histories of overweight onset. Eight thousand children from the Early Childhood Longitudinal Study-Kindergarten Cohort (ECLS-K) participated. Three groups of children were identified for analysis: (1) those who were persistently overweight from…