---
_id: '65631'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>\r\n                    Mathematics
    textbooks used to be the key resource for students’ self-regulated learning of
    mathematics. Primarily due to the digitalization of society, students have potentially
    greater access to a wider range of resources such as internet search engines,
    learning platforms, educational videos, and Generative AI. This study investigates
    the role of the mathematics textbook in comparison to other resources within students’
    self-regulated learning practices. Data were collected via a survey of 1101 German
    secondary students, representing three school types (\r\n                    <jats:italic>Gymnasium</jats:italic>\r\n
    \                   ,\r\n                    <jats:italic>Gesamtschule</jats:italic>\r\n
    \                   ,\r\n                    <jats:italic>Realschule</jats:italic>\r\n
    \                   ) and three grade levels (6, 9, and upper secondary). The
    questionnaire assessed the frequency of resource use in and outside class, reasons
    and purposes of use, and resource-based strategies when facing learning challenges
    outside class. Results show that the printed mathematics textbook is the most
    frequently used resource both in class and outside class. The textbook remains
    the most relevant resource for key purposes, such as an aid for doing homework
    and preparing for tests and exams. However, its dominance diminishes with age:
    in upper secondary school, students increasingly rely on self-created notes, and
    online resources. Correlation analyses reveal moderate to strong links between
    in-class and out-of-class use, suggesting an association between resource use
    and classroom culture. The findings underscore the textbook’s enduring centrality
    as a foundational, trusted resource within a dynamic and increasingly diverse
    learning environment. This study calls for pedagogical approaches that integrate
    textbooks more intentionally within broader resource systems, supporting students’
    agency and strategic resource selection in an era of digital abundance.\r\n                  </jats:p>"
article_type: original
author:
- first_name: Lea
  full_name: Stallmeister, Lea
  id: '63369'
  last_name: Stallmeister
- first_name: Sebastian
  full_name: Rezat, Sebastian
  id: '31132'
  last_name: Rezat
citation:
  ama: Stallmeister L, Rezat S. The role of the mathematics textbook in times of resource
    diversity. <i>Educational Studies in Mathematics</i>. Published online 2026. doi:<a
    href="https://doi.org/10.1007/s10649-026-10511-7">10.1007/s10649-026-10511-7</a>
  apa: Stallmeister, L., &#38; Rezat, S. (2026). The role of the mathematics textbook
    in times of resource diversity. <i>Educational Studies in Mathematics</i>. <a
    href="https://doi.org/10.1007/s10649-026-10511-7">https://doi.org/10.1007/s10649-026-10511-7</a>
  bibtex: '@article{Stallmeister_Rezat_2026, title={The role of the mathematics textbook
    in times of resource diversity}, DOI={<a href="https://doi.org/10.1007/s10649-026-10511-7">10.1007/s10649-026-10511-7</a>},
    journal={Educational Studies in Mathematics}, publisher={Springer Science and
    Business Media LLC}, author={Stallmeister, Lea and Rezat, Sebastian}, year={2026}
    }'
  chicago: Stallmeister, Lea, and Sebastian Rezat. “The Role of the Mathematics Textbook
    in Times of Resource Diversity.” <i>Educational Studies in Mathematics</i>, 2026.
    <a href="https://doi.org/10.1007/s10649-026-10511-7">https://doi.org/10.1007/s10649-026-10511-7</a>.
  ieee: 'L. Stallmeister and S. Rezat, “The role of the mathematics textbook in times
    of resource diversity,” <i>Educational Studies in Mathematics</i>, 2026, doi:
    <a href="https://doi.org/10.1007/s10649-026-10511-7">10.1007/s10649-026-10511-7</a>.'
  mla: Stallmeister, Lea, and Sebastian Rezat. “The Role of the Mathematics Textbook
    in Times of Resource Diversity.” <i>Educational Studies in Mathematics</i>, Springer
    Science and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s10649-026-10511-7">10.1007/s10649-026-10511-7</a>.
  short: L. Stallmeister, S. Rezat, Educational Studies in Mathematics (2026).
date_created: 2026-05-17T14:32:31Z
date_updated: 2026-05-17T14:40:54Z
ddc:
- '370'
department:
- _id: '360'
doi: 10.1007/s10649-026-10511-7
keyword:
- mathematics
- textbooks
- userstudy
- resources
- digital resources
- students
- secondary eduction
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1007/s10649-026-10511-7
oa: '1'
publication: Educational Studies in Mathematics
publication_identifier:
  issn:
  - 0013-1954
  - 1573-0816
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: The role of the mathematics textbook in times of resource diversity
type: journal_article
user_id: '31132'
year: '2026'
...
---
_id: '63697'
author:
- first_name: Lea
  full_name: Stallmeister, Lea
  id: '63369'
  last_name: Stallmeister
- first_name: Sebastian
  full_name: Rezat, Sebastian
  id: '31132'
  last_name: Rezat
citation:
  ama: 'Stallmeister L, Rezat S. Die Bedeutung des Mathematikschulbuchs in Zeiten
    der Ressourcenvielfalt. In: Schick L, Platz M, Lambert A, eds. <i>Beiträge Zum
    Mathematikunterricht 2025. 58. Jahrestagung Der Gesellschaft Für Didaktik Der
    Mathematik</i>. WTM-Verlag; 2025. doi:<a href="https://doi.org/10.17877/DE290R-26373">10.17877/DE290R-26373</a>'
  apa: Stallmeister, L., &#38; Rezat, S. (2025). Die Bedeutung des Mathematikschulbuchs
    in Zeiten der Ressourcenvielfalt. In L. Schick, M. Platz, &#38; A. Lambert (Eds.),
    <i>Beiträge zum Mathematikunterricht 2025. 58. Jahrestagung der Gesellschaft für
    Didaktik der Mathematik</i>. WTM-Verlag. <a href="https://doi.org/10.17877/DE290R-26373">https://doi.org/10.17877/DE290R-26373</a>
  bibtex: '@inproceedings{Stallmeister_Rezat_2025, title={Die Bedeutung des Mathematikschulbuchs
    in Zeiten der Ressourcenvielfalt}, DOI={<a href="https://doi.org/10.17877/DE290R-26373">10.17877/DE290R-26373</a>},
    booktitle={Beiträge zum Mathematikunterricht 2025. 58. Jahrestagung der Gesellschaft
    für Didaktik der Mathematik}, publisher={WTM-Verlag}, author={Stallmeister, Lea
    and Rezat, Sebastian}, editor={Schick, Lisa and Platz, Melanie and Lambert, Anselm},
    year={2025} }'
  chicago: Stallmeister, Lea, and Sebastian Rezat. “Die Bedeutung Des Mathematikschulbuchs
    in Zeiten Der Ressourcenvielfalt.” In <i>Beiträge Zum Mathematikunterricht 2025.
    58. Jahrestagung Der Gesellschaft Für Didaktik Der Mathematik</i>, edited by Lisa
    Schick, Melanie Platz, and Anselm Lambert. WTM-Verlag, 2025. <a href="https://doi.org/10.17877/DE290R-26373">https://doi.org/10.17877/DE290R-26373</a>.
  ieee: 'L. Stallmeister and S. Rezat, “Die Bedeutung des Mathematikschulbuchs in
    Zeiten der Ressourcenvielfalt,” in <i>Beiträge zum Mathematikunterricht 2025.
    58. Jahrestagung der Gesellschaft für Didaktik der Mathematik</i>, Universität
    des Saarlandes, Saarbrücken, 2025, doi: <a href="https://doi.org/10.17877/DE290R-26373">10.17877/DE290R-26373</a>.'
  mla: Stallmeister, Lea, and Sebastian Rezat. “Die Bedeutung Des Mathematikschulbuchs
    in Zeiten Der Ressourcenvielfalt.” <i>Beiträge Zum Mathematikunterricht 2025.
    58. Jahrestagung Der Gesellschaft Für Didaktik Der Mathematik</i>, edited by Lisa
    Schick et al., WTM-Verlag, 2025, doi:<a href="https://doi.org/10.17877/DE290R-26373">10.17877/DE290R-26373</a>.
  short: 'L. Stallmeister, S. Rezat, in: L. Schick, M. Platz, A. Lambert (Eds.), Beiträge
    Zum Mathematikunterricht 2025. 58. Jahrestagung Der Gesellschaft Für Didaktik
    Der Mathematik, WTM-Verlag, 2025.'
conference:
  location: Universität des Saarlandes, Saarbrücken
  name: 58. Jahrestagung der Gesellschaft für Didaktik der Mathematik
date_created: 2026-01-22T08:30:16Z
date_updated: 2026-01-22T08:36:01Z
department:
- _id: '98'
doi: 10.17877/DE290R-26373
editor:
- first_name: Lisa
  full_name: Schick, Lisa
  last_name: Schick
- first_name: Melanie
  full_name: Platz, Melanie
  last_name: Platz
- first_name: Anselm
  full_name: Lambert, Anselm
  last_name: Lambert
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://dx.doi.org/10.17877/DE290R-26373
oa: '1'
publication: Beiträge zum Mathematikunterricht 2025. 58. Jahrestagung der Gesellschaft
  für Didaktik der Mathematik
publisher: WTM-Verlag
status: public
title: Die Bedeutung des Mathematikschulbuchs in Zeiten der Ressourcenvielfalt
type: conference
user_id: '63369'
year: '2025'
...
---
_id: '63034'
author:
- first_name: Lea
  full_name: Stallmeister, Lea
  id: '63369'
  last_name: Stallmeister
- first_name: Sebastian
  full_name: Rezat, Sebastian
  id: '31132'
  last_name: Rezat
citation:
  ama: 'Stallmeister L, Rezat S. Students’ use of different material resources for
    specific purposes in the process of learning mathematics. In: Pepin B, Kohanová
    I, Langfeldt MB, eds. <i>Proceedings of the Fifth International Conference on
    Mathematics Textbook Research and Development</i>. Norwegian University of Science
    and Technology; 2025.'
  apa: Stallmeister, L., &#38; Rezat, S. (2025). Students’ use of different material
    resources for specific purposes in the process of learning mathematics. In B.
    Pepin, I. Kohanová, &#38; M. B. Langfeldt (Eds.), <i>Proceedings of the Fifth
    International Conference on Mathematics Textbook Research and Development</i>.
    Norwegian University of Science and Technology.
  bibtex: '@inproceedings{Stallmeister_Rezat_2025, title={Students’ use of different
    material resources for specific purposes in the process of learning mathematics},
    booktitle={Proceedings of the Fifth International Conference on Mathematics Textbook
    Research and Development}, publisher={Norwegian University of Science and Technology},
    author={Stallmeister, Lea and Rezat, Sebastian}, editor={Pepin, Birgit and Kohanová,
    Iveta and Langfeldt, Marit Buset}, year={2025} }'
  chicago: Stallmeister, Lea, and Sebastian Rezat. “Students’ Use of Different Material
    Resources for Specific Purposes in the Process of Learning Mathematics.” In <i>Proceedings
    of the Fifth International Conference on Mathematics Textbook Research and Development</i>,
    edited by Birgit Pepin, Iveta Kohanová, and Marit Buset Langfeldt. Norwegian University
    of Science and Technology, 2025.
  ieee: L. Stallmeister and S. Rezat, “Students’ use of different material resources
    for specific purposes in the process of learning mathematics,” in <i>Proceedings
    of the Fifth International Conference on Mathematics Textbook Research and Development</i>,
    Trondheim, Norway, 2025.
  mla: Stallmeister, Lea, and Sebastian Rezat. “Students’ Use of Different Material
    Resources for Specific Purposes in the Process of Learning Mathematics.” <i>Proceedings
    of the Fifth International Conference on Mathematics Textbook Research and Development</i>,
    edited by Birgit Pepin et al., Norwegian University of Science and Technology,
    2025.
  short: 'L. Stallmeister, S. Rezat, in: B. Pepin, I. Kohanová, M.B. Langfeldt (Eds.),
    Proceedings of the Fifth International Conference on Mathematics Textbook Research
    and Development, Norwegian University of Science and Technology, 2025.'
conference:
  end_date: 2025-06-20
  location: Trondheim, Norway
  name: Fifth International Conference on Mathematics Textbook Research and Development
  start_date: 2025-06-17
date_created: 2025-12-11T13:15:07Z
date_updated: 2025-12-12T10:17:46Z
department:
- _id: '98'
editor:
- first_name: Birgit
  full_name: Pepin, Birgit
  last_name: Pepin
- first_name: Iveta
  full_name: Kohanová, Iveta
  last_name: Kohanová
- first_name: Marit Buset
  full_name: Langfeldt, Marit Buset
  last_name: Langfeldt
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ntnu.edu/documents/1317903369/0/Proceedings+ICMT5+december+2026.pdf
oa: '1'
publication: Proceedings of the Fifth International Conference on Mathematics Textbook
  Research and Development
publication_identifier:
  isbn:
  - 978-82-691902-2-9
publication_status: published
publisher: Norwegian University of Science and Technology
status: public
title: Students’ use of different material resources for specific purposes in the
  process of learning mathematics
type: conference
user_id: '31132'
year: '2025'
...
---
_id: '58851'
author:
- first_name: Lea
  full_name: Stallmeister, Lea
  id: '63369'
  last_name: Stallmeister
- first_name: Sebastian
  full_name: Rezat, Sebastian
  id: '31132'
  last_name: Rezat
citation:
  ama: 'Stallmeister L, Rezat S. Ressourcennutzung von Schüler:innen zum Lernen von
    Mathematik. In: Ebers P, Rösken F, Barzel B, Büchter A, Schacht F, Scherer P,
    eds. <i>Beiträge Zum Mathematikunterricht 2024 - 57. Jahrestagung Der Gesellschaft
    Für Didaktik Der Mathematik</i>. WTM-Verlag; 2024:1365-1368. doi:<a href="https://doi.org/10.37626/GA9783959872782.0">10.37626/GA9783959872782.0</a>'
  apa: Stallmeister, L., &#38; Rezat, S. (2024). Ressourcennutzung von Schüler:innen
    zum Lernen von Mathematik. In P. Ebers, F. Rösken, B. Barzel, A. Büchter, F. Schacht,
    &#38; P. Scherer (Eds.), <i>Beiträge zum Mathematikunterricht 2024 - 57. Jahrestagung
    der Gesellschaft für Didaktik der Mathematik</i> (pp. 1365–1368). WTM-Verlag.
    <a href="https://doi.org/10.37626/GA9783959872782.0">https://doi.org/10.37626/GA9783959872782.0</a>
  bibtex: '@inproceedings{Stallmeister_Rezat_2024, place={Münster}, title={Ressourcennutzung
    von Schüler:innen zum Lernen von Mathematik}, DOI={<a href="https://doi.org/10.37626/GA9783959872782.0">10.37626/GA9783959872782.0</a>},
    booktitle={Beiträge zum Mathematikunterricht 2024 - 57. Jahrestagung der Gesellschaft
    für Didaktik der Mathematik}, publisher={WTM-Verlag}, author={Stallmeister, Lea
    and Rezat, Sebastian}, editor={Ebers, Patrick and Rösken, Fabian and Barzel, Bärbel
    and Büchter, Andreas and Schacht, Florian and Scherer, Petra}, year={2024}, pages={1365–1368}
    }'
  chicago: 'Stallmeister, Lea, and Sebastian Rezat. “Ressourcennutzung von Schüler:Innen
    Zum Lernen von Mathematik.” In <i>Beiträge Zum Mathematikunterricht 2024 - 57.
    Jahrestagung Der Gesellschaft Für Didaktik Der Mathematik</i>, edited by Patrick
    Ebers, Fabian Rösken, Bärbel Barzel, Andreas Büchter, Florian Schacht, and Petra
    Scherer, 1365–68. Münster: WTM-Verlag, 2024. <a href="https://doi.org/10.37626/GA9783959872782.0">https://doi.org/10.37626/GA9783959872782.0</a>.'
  ieee: 'L. Stallmeister and S. Rezat, “Ressourcennutzung von Schüler:innen zum Lernen
    von Mathematik,” in <i>Beiträge zum Mathematikunterricht 2024 - 57. Jahrestagung
    der Gesellschaft für Didaktik der Mathematik</i>, 2024, pp. 1365–1368, doi: <a
    href="https://doi.org/10.37626/GA9783959872782.0">10.37626/GA9783959872782.0</a>.'
  mla: Stallmeister, Lea, and Sebastian Rezat. “Ressourcennutzung von Schüler:Innen
    Zum Lernen von Mathematik.” <i>Beiträge Zum Mathematikunterricht 2024 - 57. Jahrestagung
    Der Gesellschaft Für Didaktik Der Mathematik</i>, edited by Patrick Ebers et al.,
    WTM-Verlag, 2024, pp. 1365–68, doi:<a href="https://doi.org/10.37626/GA9783959872782.0">10.37626/GA9783959872782.0</a>.
  short: 'L. Stallmeister, S. Rezat, in: P. Ebers, F. Rösken, B. Barzel, A. Büchter,
    F. Schacht, P. Scherer (Eds.), Beiträge Zum Mathematikunterricht 2024 - 57. Jahrestagung
    Der Gesellschaft Für Didaktik Der Mathematik, WTM-Verlag, Münster, 2024, pp. 1365–1368.'
date_created: 2025-02-26T08:53:50Z
date_updated: 2025-02-26T13:48:53Z
department:
- _id: '360'
doi: 10.37626/GA9783959872782.0
editor:
- first_name: Patrick
  full_name: Ebers, Patrick
  last_name: Ebers
- first_name: Fabian
  full_name: Rösken, Fabian
  last_name: Rösken
- first_name: Bärbel
  full_name: Barzel, Bärbel
  last_name: Barzel
- first_name: Andreas
  full_name: Büchter, Andreas
  last_name: Büchter
- first_name: Florian
  full_name: Schacht, Florian
  last_name: Schacht
- first_name: Petra
  full_name: Scherer, Petra
  last_name: Scherer
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://dx.doi.org/10.17877/DE290R-24938
oa: '1'
page: 1365-1368
place: Münster
publication: Beiträge zum Mathematikunterricht 2024 - 57. Jahrestagung der Gesellschaft
  für Didaktik der Mathematik
publisher: WTM-Verlag
status: public
title: Ressourcennutzung von Schüler:innen zum Lernen von Mathematik
type: conference
user_id: '63369'
year: '2024'
...