This work focuses on several aspects of training on mathematical problem solving, particularly in those cases where ruler and compasses are used for geometric constructions, and basically directed to the application of "heuristics methods". A theoretic model is described, which shows all the diferents elements that take part on this teaching process, and details of the model design is given. Furthermore, an example of data interpretation from obervations on teacher’s performance is supplyed in order to show the performance of the proposed model. Finally, reference to the principal contributions of this research is made, regarding theorical and methodological issues and the ourcoming results from empirical data.