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Teacher knowledge and teacher identity in mathematics education: An interdependent model

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  1. José Carlos Piñero Charlo ,  
  2. María del Carmen Canto López
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Abstract

This article proposes an integrative theoretical model that articulates the interdependence between teacher professional knowledge and identity in mathematics education. An integrative theoretical synthesis of national and international approaches, it distinguishes the professional profile—defined by observable competencies and knowledge—from identity, which is constructed in a situated, dynamic, and reflective manner. The study draws on the MTSK model, Wenger’s theory of communities of practice, and the identity framework by Van Zoest and Bohl. It incorporates recent contributions on professional noticing, teacher beliefs, self-regulation, situational awareness, and context transfer. The resulting PIK model graphically represents this interdependence, offering a coherent framework for analyzing teacher education pathways, professional decisions, and classroom practices. Methodologically, this paper is positioned as an integrative theoretical synthesis: it follows a structured search and thematic analysis, yet it does not aim to provide an exhaustive mapping of all perspectives on teacher knowledge or identity. The corpus was delimited to peer-reviewed journal articles indexed in Scopus and Web of Science, published between 2015 and 2025, in English or Spanish. From a critical perspective, the article concludes that addressing identity and profile jointly enables the design of more relevant initial and continuing teacher education programs, as well as improvements in teacher evaluation and professional support systems.

Plain Language Summary

Plan language summary

This article offers a fresh perspective on what makes a great math teacher. We often focus on their "professional profile"—how much math they know, their teaching skills, and what can be observed and evaluated in the classroom. However, the article argues there's another crucial element: the teacher's "identity." This is deeper and more personal—how they see themselves as an educator, their values, their experiences, and how they evolve throughout their career. This identity isn't fixed; it's built dynamically through every lesson taught, every student interaction, and every professional development course.

Think of it this way: knowledge is the tools a carpenter uses, while identity is how they feel about their craft, their belief in their work, and their ability to adapt to new challenges. Both are deeply interconnected and constantly influence each other. You can't truly understand a teacher by looking at just one aspect.

The article introduces the IPD model to visually represent this interdependence. This model was developed by synthesizing extensive research on how teachers learn, their thought processes, classroom reactions, and how they apply their knowledge in different situations.

Ultimately, this understanding has practical implications: it can significantly improve teacher training programs, both for new educators and those with years of experience. By acknowledging that both a teacher's knowledge and their evolving identity are vital, we can design more effective training and support systems. The goal is to cultivate stronger teachers, leading to more engaging and meaningful math education for students.

Corresponding author
José Carlos Piñero Charlo
0000-0001-7583-4729
Grant information

This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 640947. This project has received funding from the Spanish Ministry of Science, Innovation and Universities under grant agreements PID2022-137441NB-I00 and PID2023-151018OA-I00.

The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Copyright
© 2026 José Carlos Piñero Charlo (Corresponding Author, Co-Author); María del Carmen Canto López (Co-Author) Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Amendment

This revised version responds to the reviewer’s suggestions by strengthening methodological transparency, clarifying the scope of the synthesis, and improving readability. We now state more explicitly that the paper is an integrative theoretical synthesis rather than an exhaustive systematic mapping, and we foreground the main delimitations of the corpus (peer-reviewed journal articles indexed in Scopus and Web of Science, 2015–2025, English/Spanish), along with the selection criteria and thematic synthesis procedure.
To support the evidentiary status of the manuscript’s claims, we have revised several higher-level interpretive statements to avoid over-strong wording and, where appropriate, added additional references. We also clarify the epistemic status of the model’s internal relations, presenting them as conceptual propositions derived from the synthesis (i.e., testable hypotheses rather than empirically established causal claims).
Finally, we have introduced additional signposting and brief summarising sentences in longer sections to reduce conceptual density and enhance accessibility for readers from different backgrounds within mathematics education. In the course of revision, we also updated and standardised the model acronym to PIK throughout the manuscript and associated figures to ensure consistency.

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Authors & roles

José Carlos Piñero Charlo

HUM462 – Desarrollo Profesional del Docente. Departamento de Didáctica, área de Didáctica de la Matemática, Universidad de Cádiz, Cádiz, 11510, Spain

Roles
Corresponding Author, Co-Author, Conceptualization, Data Curation, Formal Analysis, Investigation, Methodology, Supervision, Validation, Visualization, Writing – Original Draft Preparation, Writing – Review & Editing
0000-0001-7583-4729

María del Carmen Canto López

HUM634 - Psicología Lab. Departamento de Psicología, área de Psicología del Desallollo y la Educación, Universidad de Cádiz, Cádiz, 11510, Spain

Roles
Co-Author, Project Administration, Resources
0000-0003-3077-4835

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