L’educació (matemàtica) és una arma de construcció massiva Authors Anton Aubanell Joan Jareño Abstract For a long time,mathematics teachers in all non-university educational stages have been engaged in a process of improvement: changing general approaches, adapting content, enhancing methodologies, addressing different student profiles, etc. Proof of this endeavour is found in the numerous activities and events dedicated to continuing professional development and improvement (in variousmodalities, and often with great participation) promoted both by the government and by associations in Catalonia specialised in mathematics education, headed by the Federació d’Entitats per a l’Ensenyament de les Matemàtiques a Catalunya (FEEMCAT, Federation of Entities for the Teaching of Mathematics in Catalonia). Amongst those events, two editions of the Catalan Congresses on Mathematical Education, C2EM, held in 2016 (Barcelona) and 2020 (Reus-Tarragona), stand out. In this paper, the conclusions of the former, the challenges outlined in the latter, and the initiatives developed by both are considered. Downloads Download data is not yet available. Downloads PDF (Català) Issue No. 50: juny 2024 Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal NouBiaix, authors accept the following terms:Authors assign to Societat Catalana de Matemàtiques (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to NouBiaix.Authors answer to Societat Catalana de Matemàtiques for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Matemàtiques declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.NouBiaix is not responsible for the ideas and opinions expressed by the authors of the published articles.