G. Albano*, A. Cavallone, C. D'Apice*, G. Gargiulo (Italy),
   dapice@diima.unisa.it
Mathematica and didactical innovation: a quadric use case

The aim of this work is to describe a package for the education in mathematics
focused on the study of the quadrics. It is structured in an hypertextual way,
including a part of theory and a guided laboratory. In the tutorial the
quadrics are introduced starting from the definition and proceeding with the
classification and the reduction to a standard form.  The laboratory part has
been given a structure designed in order to make the final user's interface as
friendly as possible. Such an improvement has been obtained by the insertion of
buttons and links that make it possible to use all implemented functions
without prior knowledge of their syntax.