Abstract
Our paper aims at showing how dynamic figures are useful in the learning of the use of geometrical properties at a high school level, in continuity with the practices inherited during the primary school education. After considering the general contextual rooting of the problem situations while comparing geometrical reality with educational institution, we focus on the student-milieu system and on the connections between the reasoning and the operational dynamic figure. We then present a research framework in order to analyze a geometrical workspace dedicated towards the learning of the use of properties. The workspace is presented in what it has of generic to enhance such learning and it enables us to conclude by some theoretical remarks on the components from the suitable geometrical working space.