The objective of Physics courses is that the students learn how to use what they know to solve problems in the real world (competencies), but no one learns to do that seeing as the professor think in the blackboard. The program of a course uses topics as examples of reasoning. Reasoning involves the ability to use their knowledge. If we precisely define the objectives of a lecture "before" actually presenting the material to the students, the lecture will have better chances to hit the desired target. Having these objectives in mind we will be able to find a concatenated series of questions, which may help the students to discover and learn what we want to teach (thus improving the students´ competencies). In doing this we will be recreating the Socratic Method, which has evolved as constructivism.