How does working memory matter in young children's arithmetic skills: The mediating role of basic number processing

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Educational Psychology

Background:

• Working memory is crucial for cognitive tasks, including mathematical reasoning.
• Understanding the specific components of working memory that support early arithmetic is essential for targeted educational interventions.

Purpose of the Study:

• To investigate the association between working memory components and arithmetic performance in kindergarten children.
• To examine the influence of basic number processing skills on early arithmetic abilities.
• To explore potential mediating roles of numerical magnitude comparison between working memory and arithmetic skills.

Main Methods:

• Administered working memory tests (visuospatial sketchpad, phonological loop, central executive) to 103 Chinese kindergarten children.
• Assessed basic number processing skills: number line estimation, nonverbal numerosity estimation, and numerical magnitude comparison.
• Utilized statistical analyses to determine the relationships and mediating effects.

Main Results:

• The central executive significantly predicted arithmetic performance in young children.
• Number line estimation and numerical magnitude comparison were significant predictors of early arithmetic skills.
• Numerical magnitude comparison mediated the relationship between the visuospatial sketchpad and arithmetic skills.

Conclusions:

• Working memory, particularly the central executive, and basic number processing are vital for early arithmetic development.
• Different working memory components influence arithmetic skills through distinct pathways, with numerical magnitude comparison acting as a key mediator.