---
_id: '65880'
author:
- first_name: Katharina
  full_name: Knaudt, Katharina
  last_name: Knaudt
- first_name: Raja
  full_name: Herold-Blasius, Raja
  id: '126182'
  last_name: Herold-Blasius
- first_name: Christoph
  full_name: Selter, Christoph
  last_name: Selter
citation:
  ama: 'Knaudt K, Herold-Blasius R, Selter C. Intertwining theory and practice: Design
    of planning phases in PD training to support effective teacher planning processes.
    In: <i>Proceedings of the Fourteenth Congress of the European Society for Research
    in Mathematics Education (CERME14</i>. ; 2026:1–8. doi:<a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>'
  apa: 'Knaudt, K., Herold-Blasius, R., &#38; Selter, C. (2026). Intertwining theory
    and practice: Design of planning phases in PD training to support effective teacher
    planning processes. <i>Proceedings of the Fourteenth Congress of the European
    Society for Research in Mathematics Education (CERME14</i>, 1–8. <a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>'
  bibtex: '@inproceedings{Knaudt_Herold-Blasius_Selter_2026, title={Intertwining theory
    and practice: Design of planning phases in PD training to support effective teacher
    planning processes}, DOI={<a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>},
    booktitle={Proceedings of the Fourteenth Congress of the European Society for
    Research in Mathematics Education (CERME14}, author={Knaudt, Katharina and Herold-Blasius,
    Raja and Selter, Christoph}, year={2026}, pages={1–8} }'
  chicago: 'Knaudt, Katharina, Raja Herold-Blasius, and Christoph Selter. “Intertwining
    Theory and Practice: Design of Planning Phases in PD Training to Support Effective
    Teacher Planning Processes.” In <i>Proceedings of the Fourteenth Congress of the
    European Society for Research in Mathematics Education (CERME14</i>, 1–8, 2026.
    <a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>.'
  ieee: 'K. Knaudt, R. Herold-Blasius, and C. Selter, “Intertwining theory and practice:
    Design of planning phases in PD training to support effective teacher planning
    processes,” in <i>Proceedings of the Fourteenth Congress of the European Society
    for Research in Mathematics Education (CERME14</i>, 2026, pp. 1–8, doi: <a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>.'
  mla: 'Knaudt, Katharina, et al. “Intertwining Theory and Practice: Design of Planning
    Phases in PD Training to Support Effective Teacher Planning Processes.” <i>Proceedings
    of the Fourteenth Congress of the European Society for Research in Mathematics
    Education (CERME14</i>, 2026, pp. 1–8, doi:<a href="https://hal.science/hal-05334687v1">https://hal.science/hal-05334687v1</a>.'
  short: 'K. Knaudt, R. Herold-Blasius, C. Selter, in: Proceedings of the Fourteenth
    Congress of the European Society for Research in Mathematics Education (CERME14,
    2026, pp. 1–8.'
date_created: 2026-06-15T10:10:05Z
date_updated: 2026-06-24T07:01:42Z
ddc:
- '510'
doi: https://hal.science/hal-05334687v1
file:
- access_level: open_access
  content_type: application/pdf
  creator: rheroldb
  date_created: 2026-06-15T10:10:02Z
  date_updated: 2026-06-15T10:10:02Z
  file_id: '65881'
  file_name: 2025_CERME_Knaudt-348.pdf
  file_size: 925117
  relation: main_file
file_date_updated: 2026-06-15T10:10:02Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hal.science/hal-05334687v1
oa: '1'
page: 1–8
publication: Proceedings of the Fourteenth Congress of the European Society for Research
  in Mathematics Education (CERME14
quality_controlled: '1'
status: public
title: 'Intertwining theory and practice: Design of planning phases in PD training
  to support effective teacher planning processes'
type: conference
user_id: '126182'
year: '2026'
...