Dietrich, Julia F. and Huber, Stefan and Dackermann, Tanja and Moeller, Korbinian and Fischer, Ursula (2016) Place-value understanding in number line estimation predicts future arithmetic performance. BRITISH JOURNAL OF DEVELOPMENTAL PSYCHOLOGY, 34 (4). pp. 502-517. ISSN 0261-510X, 2044-835X
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In multi-digit numbers, the value of each digit is determined by its position within the digit string. Children's understanding of this place-value structure constitutes a building block for later arithmetic skills. We investigated whether a number line estimation task can provide an assessment of place-value understanding in first grade. We hypothesized that estimating the position of two-digit numbers requires place-value understanding. Therefore, we fitted a linear function to children's estimates of two-digit numbers and considered the resulting slope as a measure of children's place-value understanding. We observed a significant correlation between this slope and children's performance in a transcoding task known to require place-value understanding. Additionally, the slope for two-digit numbers assessed at the beginning of grade 1 predicted children's arithmetic performance at the end of grade 1. These results indicate that the number line estimation task may indeed constitute a valid measure for first-graders' place-value understanding. Moreover, these findings are hard to reconcile with the view that number line estimation directly assesses a spatial representation of numbers. Instead, our results suggest that numerical processes involved in performing the task (such as place-value understanding) may drive the association between number line estimation and arithmetic performance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NUMERICAL ESTIMATION; REPRESENTATIONS; COMPETENCES; CHILDREN; LANGUAGE; place-value understanding; number line estimation; transcoding; arithmetic; numerical development |
| Subjects: | 300 Social sciences > 370 Education |
| Divisions: | Psychology and Pedagogy > Institut für Pädagogik > Lehrstuhl für Schulpädagogik (Prof. Dr. Heidrun Stöger) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Apr 2019 09:14 |
| Last Modified: | 24 Apr 2019 09:14 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4044 |
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