Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Originally published in 1988, the papers here served as a start in building a research agenda for the teaching and assessment of mathematical problem solving. The hope was that the ideas presented here would lead to abundant research activities with results that ultimately influenced practice in the schools.