RT info:eu-repo/semantics/article T1 Explicit and reflective teaching for the development of Critical Thinking skills and Nature of Science and Technology understandings in Primary Education A1 Ortega-Quevedo, Vanessa A1 Gil-Puente, Cristina A1 Vallés, Cristina A1 García-Marigómez, Carmela K1 Educación K1 Nature of science K1 Critical thinking K1 Elementary education K1 Reflective teaching K1 58 Pedagogía AB This study seeks to contribute to the development of critical thinking (CT) skillsand nature of science (NOS) concepts in primary education – more specifically, argumentanalysis (CT) and certain aspects of the external sociology of science, such as scientificdecision making and the compromise between the positive and negative effects of scienceand technology (NOS). The study involved the participation of 72 students from 5 differentschools. It was a mixed-design study, using tools such as questionnaires, observationcharts and interview scripts. The results showed significant improvement in argumentanalysis questionnaire scores and in NOS concepts after the explicit and reflective workdone in a teaching-learning sequence. These results were confirmed by classroomobservation, the analysis of workbooks and student interviews within a month of theintervention. This enabled us to conclude that the intervention had a positive impact onthe development of the skills and concepts under study, even in the face of variation as aresult of differences in teaching-learning sequence implementation by different teachersin different contexts. The reflective teaching approach can be identified as one of the keysto intervention success. PB IENCI SN 1518-8795 YR 2025 FD 2025 LK https://uvadoc.uva.es/handle/10324/82424 UL https://uvadoc.uva.es/handle/10324/82424 LA eng NO Ortega-Quevedo, V., Gil-Puente, C., Vallés Rapp, C., & García-Marigómez, C. (2025). Explicit and reflective teaching for the development of Critical Thinking skills and Nature of Science and Technology understandings in Primary Education. Investigações Em Ensino De Ciências, 30(1), 313-335. https://doi.org/10.22600/1518-8795.ienci/2025v30n1p313 NO Producción Científica DS UVaDOC RD 02-feb-2026