Abstract
Children's performance on number line tasks reflects their developing number system knowledge. Before 5 years of age, most children perform poorly on even the simplest number lines (i.e., 0–10). Our goal was to understand how number line skills develop before formal schooling. Chilean preschoolers attempted a 0–10 number line task three times over 2 years: at the beginning of pre-kindergarten (M = 4:7 [years;months]; Time 1), at the end of pre-kindergarten (M = 5:0; Time 2), and at the end of kindergarten (M = 5:10; Time 3). We used latent class analysis to group children according to their patterns of performance across number targets. At Time 1, 86% of children had error patterns indicating that they randomly placed estimates on the line. At Time 2, 56% of children continued to respond randomly. At Time 3, 56% of children showed competent performance across the number line, 23% were accurate only near the endpoints, and 21% were accurate only for low target numbers near the origin. Latent transition analyses showed that the transition from less to more proficient estimation classes was predicted by children's number identification skills. Thus, number line performance changed dramatically from 4 to 6 years of age as children began to develop the cognitive and numerical skills necessary to accurately estimate numbers on a number line.
Original language | English |
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Article number | 105144 |
Journal | Journal of Experimental Child Psychology |
Volume | 208 |
Early online date | 13 Apr 2021 |
DOIs | |
Publication status | Published - Aug 2021 |
Externally published | Yes |
Bibliographical note
Funding Information:Support for this research was provided by the Chilean National Fund of Scientific and Technology Development (ANID/CONICYT FONDECYT) through Grants FONDECYT Iniciación 11140899 and FONDECYT Regular 1180675 to María Inés Susperreguy. We express our sincere gratitude to the schools, teachers, and children who participated in the study. We are also grateful to the research assistants who contributed to data collection and to Andrea Howard for suggestions on the statistical analyses. Support for data analysis and writing was also provided by the Social Sciences and Humanities Research Council (SSHRC) of Canada through an Insight Grant to J. LeFevre, E. Maloney, H. Osana, and S. Skwarchuk and by Ph.D. scholarships to H. Douglas and S. Burr.
Publisher Copyright:
© 2021 Elsevier Inc.
Keywords
- Chile
- Early numeracy
- Latent class analysis
- Mathematical cognition
- Number line
- Preschool children
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Developmental and Educational Psychology