doi:10.29333/iejme/17183engBurgos, MaríaBeltrán-Pellicer, PabloCotrado, BethzabeA guide to the analysis of didactic suitability of probability textbook lessonsART-2025-146200The aim of this article is to buid a Guide to the Analysis of Probability Textbook Lessons for secondary education (students aged 12-14), using the framework of Didactic Suitability. The facets, components and indicators of the didactic suitability construct are applied to categorize and organize didactic-mathematical knowledge on teaching and learning of probability in secondary education derived from research on the subject. The guide constitutes a systemic structure of descriptors (gradable and recognizable features in the textbook lesson) associated with the different components of partial suitability, which can facilitate the teacher's decision-making on how to use a textbook lesson in the classroom to optimise the instructional process.2025http://zaguan.unizar.es/record/16407210.29333/iejme/17183http://zaguan.unizar.es/record/164072oai:zaguan.unizar.es:164072info:eu-repo/grantAgreement/ES/AEI/PID2022-139748NB-I00info:eu-repo/grantAgreement/ES/DGA/S60-23RInternational Electronic Journal of Mathematics Education 20, 4 (2025), em0858 [18 pp.]byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess