Artículo Materias > Educación Universidad Internacional Iberoamericana México > Investigación > Artículos y libros Abierto Español Despite the fact that in recent years there has been much talk of the topic of inclusion in education in Costa Rica, there are still concerns and complaints by teachers of regular education with respect to the lack of information and guidelines that clarify their responsibilities in the process of inclusion. To attend to pupils with or without special educational needs in the regular classroom, it is a great challenge for these because it must comply with the curricular goals proposed, and implemented, various methodological strategies for a curriculum management of quality that, at times, is affected by the collective diversity. Therefore, with the aim of analyzing the competencies of teachers in the implementation of intervention strategies in the classroom during the teaching-learning process for an inclusive and quality education in the educational system of Costa Rica, an investigation was made of mixed approach, with the participation of 385 teachers of I - II Cycle, III Cycle, and Education Diversified belonging to public institutions. Between the preliminary results quantitative has been able to identify that 85% of the teachers agree that the use of alternative activities level of complexity is appropriate for the students progress in the development of their skills, also a 92% also state that to apply methodological strategies adapted for the pedagogical mediation depending on the skills, promotes inclusive practices. metadata Jones Soutt, Vilma mail SIN ESPECIFICAR (2021) Competencias docentes en la aplicación de estrategias de intervención de aula durante el proceso de enseñanza-aprendizaje para una educación inclusiva y con calidad: resultados preliminares. International Journal of Advanced Research, 9 (06). pp. 455-463. ISSN 23205407