According to the Civil Engineering Bachelor Degree program, students should have acquired, among other knowledge, the skill: “to understand and assume the ethical and professional responsibility of the activity of the Civil Engineer”. In order to do this, they can take an optional subject (not all the students enroll), called “ethics of civil engineering” and also the transversal skill “ethical, environmental and professional responsibility” is taught in several subjects of the degree program. This communication presents the methodology used in the subject “Constructions Materials” of second degree course to introduce this transversal skill. The great achievement of this methodology is to have this transversal skill present in all work sessions in the classroom, so the skill becomes part of the daily work of the student. Moreover, it presents additional advantages for the evaluation of the skill thanks to the continuous acquisition of evidence.