  IWIMS (WWW Interactive Multipurpose Server) offers interactive resources
designed over the past 20 years for teaching in various subjects (particularly
focusing on mathematics, but also in biology, chemistry, economics, languages,
physics), at various levels (from primary school to university). In this paper
some interactive tools and exercises that can be used to teach mathematics are
presented. Through these examples, the strengths and weaknesses of a didactic
exploiting computer-based exercises are discussed.
