We describe the design, construction and validation processes of a instrument aimed to the evaluation of teaching skills of the Catholic University of Colombia’s undergraduate level teachers. The instrument evaluates seven skills that are basic to the exercise of teaching: curriculum planning, appropriate usage of methodological designs and organization of teaching activities, scientific technological competence, appropriate interaction with students, evaluative competence, tutorial skills, and self-reflection on teaching practices. The indicators of teacher’s competence were thus constructed, and the test was validated by the opinion of 60 expert judges. The results of this process were used to design the final instrument, which once adjusted, was applied to 20 teachers of the Catholic University of Colombia