A tailored small group instruction intervention in mathematics benefits low achievers

Abstract Running two separate two-stage randomized trials, we implement and test three variants of a small group instruction intervention aimed at improving mathematics competencies for the 20% lowest achievers in mathematics in grades 2 and 8 in Danish public schools. We calculate immediate impacts...

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Main Authors: Michael Rosholm, Pia Beck Tonnesen, Klaus Rasmussen, Steffen Overgaard, Julie Vangsøe Færch, Signe Gottschau Malm, Jimmy Harder
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:npj Science of Learning
Online Access:https://doi.org/10.1038/s41539-025-00310-9
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author Michael Rosholm
Pia Beck Tonnesen
Klaus Rasmussen
Steffen Overgaard
Julie Vangsøe Færch
Signe Gottschau Malm
Jimmy Harder
author_facet Michael Rosholm
Pia Beck Tonnesen
Klaus Rasmussen
Steffen Overgaard
Julie Vangsøe Færch
Signe Gottschau Malm
Jimmy Harder
author_sort Michael Rosholm
collection DOAJ
description Abstract Running two separate two-stage randomized trials, we implement and test three variants of a small group instruction intervention aimed at improving mathematics competencies for the 20% lowest achievers in mathematics in grades 2 and 8 in Danish public schools. We calculate immediate impacts on math competencies as well as impacts in the medium term and conduct cost-effectiveness analyses of the different intervention arms. The context is the Scandinavian welfare state with an already high-quality public school system. Nevertheless, we find very large positive and cost-effective impacts of several intervention variants, some of which persist in the medium term. In particular, interventions in grade 2 tend to persist, while eighth-grade interventions tend to fade out in the medium term.
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issn 2056-7936
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series npj Science of Learning
spelling doaj-art-1f3db3cc7d5a4cb48788734b29f2cc692025-08-20T03:18:27ZengNature Portfolionpj Science of Learning2056-79362025-04-0110111110.1038/s41539-025-00310-9A tailored small group instruction intervention in mathematics benefits low achieversMichael Rosholm0Pia Beck Tonnesen1Klaus Rasmussen2Steffen Overgaard3Julie Vangsøe Færch4Signe Gottschau Malm5Jimmy Harder6Department of Economics and Business Economics, Aarhus UniversityUniversity College CopenhagenStatistics DenmarkUniversity College CopenhagenUniversity College CopenhagenUniversity College CopenhagenUniversity College CopenhagenAbstract Running two separate two-stage randomized trials, we implement and test three variants of a small group instruction intervention aimed at improving mathematics competencies for the 20% lowest achievers in mathematics in grades 2 and 8 in Danish public schools. We calculate immediate impacts on math competencies as well as impacts in the medium term and conduct cost-effectiveness analyses of the different intervention arms. The context is the Scandinavian welfare state with an already high-quality public school system. Nevertheless, we find very large positive and cost-effective impacts of several intervention variants, some of which persist in the medium term. In particular, interventions in grade 2 tend to persist, while eighth-grade interventions tend to fade out in the medium term.https://doi.org/10.1038/s41539-025-00310-9
spellingShingle Michael Rosholm
Pia Beck Tonnesen
Klaus Rasmussen
Steffen Overgaard
Julie Vangsøe Færch
Signe Gottschau Malm
Jimmy Harder
A tailored small group instruction intervention in mathematics benefits low achievers
npj Science of Learning
title A tailored small group instruction intervention in mathematics benefits low achievers
title_full A tailored small group instruction intervention in mathematics benefits low achievers
title_fullStr A tailored small group instruction intervention in mathematics benefits low achievers
title_full_unstemmed A tailored small group instruction intervention in mathematics benefits low achievers
title_short A tailored small group instruction intervention in mathematics benefits low achievers
title_sort tailored small group instruction intervention in mathematics benefits low achievers
url https://doi.org/10.1038/s41539-025-00310-9
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