%0 Journal Article %T Los instrumentos de mediaci¨®n en la escuela media: un estudio de las actividades did¨¢cticas %A Mart¨ªn %A Diana %A De Pascuale %A Rita %J Espacios en blanco. Serie indagaciones %D 2012 %I Scientific Electronic Library Online %X the present article comes off from the conclusions to those that we have arrived in the investigation project "the construction cognitive in students of the half level: a study from the didactic" activities (2007 -2009). this investigation was located in an intermediation space between the psychology and the didactics, linked in the concern by the construction of the knowledge in the school environment. in such a sense, those theoretical referents were selected that were committed in the formulation of the investigation problem: construction cognitive, learning, motivation, teaching, didactic activities, activity system. he/she registered in an exploratory methodological qualitative perspective of character.starting from the different levels of analysis of the data obtained in the fieldwork, it was possible to establish a tipolog¨ªa of didactic activities. these were considered as mediation tools, i don't eat neuter instruments through which certain operations are executed, but rather they integrate the understandings of the practices in that you/they are used. %K construction cognitive %K subject of the teaching %K subject of the learning %K didactic activity. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1515-94852012000100008&lng=en&nrm=iso&tlng=en