Estrategia metodológica para el aprendizaje de la adición y la sustracción, en el tercer año de educación general básica.

It is crucial to address and solve the challenges faced by EGBE students in solving problems involving the use of addition and subtraction operations to strengthen their fundamental mathematical skills. The present study aimed to develop a methodological strategy supported by ICT, which combines gamification of learning and PBL, to promote the development of basic mathematical skills of addition and subtraction, from a cognitive and motivational approach, in third grade EGBE students. The study was carried out with the participation of 25 third grade students of the Unidad Educativa Mundial (Matutina) in the Elementary Basic, in addition to the collaboration of 9 mathematics teachers of the same institution. The proposed strategy consisted of 5 stages for its design and implementation, planned for a total of 12 weeks. The applied diagnosis allowed the identification of cognitive, emotional, and motivational insufficiencies in the students. To implement the strategy, it was decided to use the Wordwall web platform for game design. The statistical results used for the pretest-posttest comparative analysis allowed determining a significant growth in the students' grades, as well as progress in response times and in emotional and motivational aspects. The criteria of the experts consulted corroborated the relevance of the proposed strategy, although they highlighted areas for improvement in relation to the consideration of ICT portability in the strategy. [ABSTRACT FROM AUTHOR]