Developing students' culture of problem solving via heuristic solving strategies

International audienceThe goal of our long-term project presented in this paper is to develop students' culture of problem solving based on using heuristic solving strategies. In this paper, we describe the method of implementation of the strategies in class preceded by a detailed a priori analysis and followed by an a poste-riori analysis and a comparison between the teacher's expectations and the reality in the class. We focus on the variables of a problem to be treated in class that may influence the role and use of the problem in developing students' creativity and their culture of problem solving