Formulation of “questions – answers” in teaching-learning process as a way of improving learning of students at university level

One of the main things in a process of teaching-learning consists of making hierarchical contents of the programs and to determine specific and clearly which are the objectives of the course. It is not always easy for a teacher to discriminate the relative importance of the program contents. If we consider that the questions the students do are a reflection of what the teachers consider important, the exams could be considered as an adequate source to know their opinion about the contents that a student on a topic should know. Nevertheless, more important than the content itself, is the form in which is evaluated, that is to say the task demanded