Very large numbers words such as "hundred," "thousand," "million," "billion," and "trillion" pose a learning problem for children because they are sparse in everyday speech and children's experience with extremely large quantities is scarce. In this study, we examine when children acquire the…

When children first learn to count, what do they understand about the structure of the count system? The present study investigated English-speaking children's ability to generalize the rules that structure their count list to novel contexts. A total of N = 86 children (3;0-6;11) completed a battery of tasks aimed at measuring their understanding…

Background: Recent studies have revealed the association between mapping and arithmetic (Ferres-Forga et al., "J. Numer. Cogn.", 8, 2022, 123; LeFevre et al., "J. Numer. Cogn.", 8, 2022, 1). Aim: The underlying mechanism remains unclear. Materials & Methods: The current study recruited 118 kindergarten children and followed…

The development of young children's counting has been extensively researched, yet detailed studies that examine development over multiple years are curiously absent from the literature. This research examined 15 preschoolers' (ages 3-4) use of number words as they engaged in two counting tasks, an oral counting task and counting a collection of 31…

Recently, there have been calls to build a more inclusive knowledge base of the home numeracy environment (HNE) by diversifying the populations in our descriptive research. Given that Latine children are the fastest-growing population in the U.S. it is of the utmost importance to include Latine families and children in these efforts. The present…

Preverbal infants spontaneously represent the number of objects in collections. Is this 'sense of number' (also referred to as Approximate Number System, ANS) part of the cognitive foundations of mathematical skills? Multiple studies reported a correlation between the ANS and mathematical achievement in children. However, some have suggested that…

The study evaluated the effects of board games on children in a range of cognitive areas, considering both inclusion (i.e. pre- and post-comparisons, playing style [board games], participants belonging to PreKinder and Kindergarten, and experimental approach) and exclusion criteria (i.e. video games). Nineteen articles were selected using both…

Exploring individual differences and looking beyond averaged parameters of early numeracy in young children with mild intellectual disabilities has become an area of interest to many researchers worldwide. This study aimed to identify the different profiles of early numeracy skills in young children with mild intellectual disabilities. For this…

Number sense is a key indicator of students' future academic success. Students from low socio-economic backgrounds often come to kindergarten lacking number sense skills that other students acquire before they begin formal schooling. Small-group intervention that is focused on number sense skills is an effective way to address this foundational…

Background: The working memory (WM) system is recognized as a crucial cognitive function that underpins the acquisition of new knowledge and the development of foundational skills during childhood. Children's early literacy and numeracy skills lay the foundation for future academic success in reading and mathematics. While previous research has…

In recent years, children's video viewing has shifted from television to online streaming platforms like YouTube. While such platforms include many educational videos for children, we know little about the educational value of the content in these videos. To understand the learning opportunities available to children when they watch videos online,…

In recent years, children's video viewing has shifted from television to online streaming platforms like YouTube. While such platforms include many educational videos for children, we know little about the educational value of the content in these videos. To understand the learning opportunities available to children when they watch videos online,…

Using data from the Applied Problems subtest of the Woodcock-Johnson Tests of Achievement (Woodcock & Johnson, 1989/1990, "Woodcock-Johnson psycho-educational battery-revised. Allen, TX: DLM Teaching Resources") administered to 1,364 children from the National Institute of Child Health and Human Development (NICHD) Study of Early…

Children's early accuracy on place value (PV) tasks longitudinally predicts their later multidigit calculation skills. However, another window into children's emerging base-ten concepts is the pattern of errors -- "smart errors" -- they exhibit on these measures. Past research has speculated that these smart errors -- similar to invented…

The home numeracy environment is an essential construct that helps explain children's numeracy skills. However, this field has been developed mostly focusing on monolingual English-speaking families, and cultural differences that contextualize the home environment have not been considered. This study describes the home numeracy environment of…