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espanolEn este trabajo se describe como evolucionan las explicaciones de catorce ninos y ninas de Educacion Infantil (3-5 anos) durante una propuesta didactica sobre el aire. Aunque existe una vasta literatura en este dominio, gran parte de los estudios se han desarrollado en etapas educativas superiores. Para la recogida de datos se ha recurrido a la grabacion en audio y video de las sesiones. Para el analisis de datos se han adoptado categorias descritas en estudios previos que tambien abordan las explicaciones de los ninos acerca de fenomenos naturales. Los resultados muestran que al inicio los ninos no tenian conceptualizada la idea de aire. Sin embargo, durante el desarrollo de la secuencia sus explicaciones fueron adquiriendo un mayor nivel de sofisticacion. Llegaron a reconocer que el aire existe y ocupa espacio, siendo la masa la propiedad mas dificil de asimilar. Estos hallazgos sugieren que los ninos de corta edad si pueden construir representaciones mentales acerca del aire. EnglishThis paper describes how the explanations of fourteen pre-school children (aged 3 to 5 years) evolve during a teaching proposal concerning air. Although there is extensive research on this conceptual domain, most studies have been developed at higher educational levels. In order to collect data, each session was recorded in audio and video files. As a method for data analysis, the categories described in previous studies that also address children’s explanations about natural phenomena have been adopted. The results show that, at first, young children had not conceptualized the idea of air. However, during the development of the teaching proposal, their explanations were acquiring a higher level of sophistication. They recognized that air exists and occupies space, with mass being the most difficult property to assimilate. These findings suggest that young children can construct mental representations of air

Una propuesta didáctica para la construcción de un modelo precursor del aire en la Educación Infantil