The DALEST Project
For the last 15 years dynamic geometry software have been increasingly used for
teaching geometry; however it is not suitable for teaching stereometry in
middle schools in a creative and explorative way. DALEST stands for Developing
Active Learning Environment for Stereometry. Partners in the
project are University of Cyprus, University of Southampton, University of
Lisbon, University of Sofia, University of Athens, N.K.M Netmasters and Cyprus
Mathematics Teachers Association. The project is co-funded by the European
Union under the Socrates Program, MINERVA, 2005 Selection.
The main objective is the development of a dynamic 3D geometry microworld,
which enables students to construct, observe and manipulate geometrical figures
in space, and teachers to help students construct understanding of stereometry.
An essential part of the software developed in the project is the set
of Elica-DALEST applications. They are used to practice measuring of volume and
surface of 3D solids, exploring various intersections of solids and planes, as
well as playing with the reverse problems of well known nets problems.