Background
Intervention studies suggested that instruction in mathematical language enhances preschoolers’ early numerical competencies, with mixed effects. This research focused on single language learners (SLLs) and rarely included dual language learners (DLLs). Because DLLs have been found to have limited knowledge of quantitative language, we do not know whether interventions on mathematical language are equally or even more effective for DLLs.
Aims
This study investigated the effectiveness of a teacher-delivered quantitative language intervention on preschoolers' quantitative language and numerical competencies. We determined whether children's language status (i.e., DLLs versus SLLs) influenced potential intervention effects.
Sample
Participants were 154 children (aged 3- to 5-year-old).
Methods
Schools were randomly assigned to a quantitative language intervention or an active control condition. Children in the intervention condition received three picture books read by their teacher with embedded quantitative language content. The active control group received similar books without quantitative language content. Classroom teachers had to read each book 3 times over 3 weeks. Children were tested before and after the intervention on quantitative language and numerical competencies.
Results
The intervention had positive effects on DLLs' quantitative language, ηp2 = .049. We observed a positive effect on some SLLs' quantitative language, but only when children who performed at maximum on the pretest were discarded. There were no significant effects of the intervention on children's numerical competencies.
Conclusion
Findings indicate the efficacy of quantitative language interventions on mathematical language skills. More work is needed to understand how to best promote children's and DLLs' numerical competencies.
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