## Abstract

We present a study of a model for professional development of mathematics teachers, based on their participation in a collaborative problem solving in online discussion forums, in two roles. At the first stage of the study, 47 high-school mathematics teachers participated in the forums as students. At the second stage, they mediated forums as mentors. The first stage of the study showed gradual development of group synergy among the teachers-as-students. The second stage showed that the experience of group synergy gained by the teachers at the first stage has supported the development of their mathematical fluency in teaching.

Original language | English |
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Title of host publication | Proceedings of the 45th Conference of the International Group for the Psychology of Mathematics Education, 2022 |

Editors | Ceneida Fernández, Salvador Llinares, Ángel Gutiérrez, Núria Planas |

Publisher | Psychology of Mathematics Education (PME) |

Pages | 19-26 |

Number of pages | 8 |

ISBN (Print) | 9788413021775 |

State | Published - 2022 |

Externally published | Yes |

Event | 45th Annual Conference of the International Group for the Psychology of Mathematics Education, PME 2022 - Alicante, Spain Duration: 18 Jul 2022 → 23 Jul 2022 |

### Publication series

Name | Proceedings of the International Group for the Psychology of Mathematics Education |
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Volume | 3 |

ISSN (Print) | 0771-100X |

ISSN (Electronic) | 2790-3648 |

### Conference

Conference | 45th Annual Conference of the International Group for the Psychology of Mathematics Education, PME 2022 |
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Country/Territory | Spain |

City | Alicante |

Period | 18/07/22 → 23/07/22 |

### Bibliographical note

Publisher Copyright:© 2022, Psychology of Mathematics Education (PME). All rights reserved.