Hypermedia as a means for learning and for thinking about learning

The paper refers to a project aimed at designing, implementing and evaluating a hypermedia system, IPER-3, facing the three 'classical' problems in the history of mathematics (trisection of the angle, quadrature of the circle, duplication of the cube). The aim of the project is to study the opportunities offered by this kind of technology to the presentation of mathematical topics both in teacher training courses and in classroom work.