Development of children’s number line estimation in primary school: regional and curricular influences

Chang Xu*, Sabrina Di Lonardo Burr, Jo-Anne LeFevre, Sheri-Lynn Skwarchuk, Helena P. Osana, Erin A Maloney, Judith Wylie, Victoria Simms, María Inés Susperreguy, Heather Douglas , Anne Lafay

*Corresponding author for this work

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Is the development of number line estimation (NLE) similar across regions? Data from Canada (Quebec, n = 67, Mage = 7.9 years; Manitoba, n = 177, Mage = 7.8 years), Chile (n = 81, Mage = 7.9 years), and Northern Ireland (n = 171, Mage = 7.3 years) were analyzed. Twice, approximately one year apart, students completed a 0–1000 NLE task and other mathematical tasks. Using latent profile analysis, students’ estimates were classified as belonging to either a uniform or variable profile. At Time 1, estimation accuracy differed across regions, but at Time 2, patterns of performance were similar. Regional variations in improvements were related to curricular demands. Moreover, mini meta-analyses of the associations between NLE and other mathematical tasks revealed medium effect sizes. Overall, the NLE task can provide insights into concurrent and longitudinal mathematics achievement, but educational experiences should be considered when comparing performance across regions.

Original languageEnglish
Article number101355
Number of pages19
JournalCognitive Development
Early online date20 Jun 2023
Publication statusPublished - Jul 2023


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