espanolEl presente estudio determina el efecto de una intervencion educativa mediada por la formacion docente “Clase para Pensar”, en torno al desarrollo de las competencias comunicativas en estudiantes de tercer grado. Se tomaron medidas pre-postest del producto textual de 60 estudiantes (30 grupo experimental y 30 grupo control) antes y despues de la intervencion. Se analizaron los textos teniendo en cuenta la presencia y la ausencia de elementos de Supraestructura, Macroestructura y Microestructura. Los resultados indican que la intervencion educativa “Clase para Pensar” favorece el desarrollo de las competencias comunicativas. EnglishThis study determined the effect of an educational intervention based in the Teacher Development Program “Class to Think” aimed to develop the learning of communicative competence in third grade students. Pre and posttest measures of written text of 60 students were taken (30 experimental group and 30 control group) before and after the intervention. The written texts were analyzed taking into account the presence and absence of Superstructure, Macrostructure and Microstructure elements. The results indicate that the intervention “Clase para Pensar” favors the development of communicative competences.