Apart from the short-term experiment whose implementation
and results are discussed in this paper, we also work on a
longitudinal experiment (systematic work for the period of
14 months). We expect the pupils to be able to use actively in
the end of this experiment problem solving strategies that they
choose as optimal for the specific problem. In this sense we say
that their “Culture of problem solving” will improve (for details
see e.g. Eisenmann, Novotná and Přibyl, 2013).