The most basic teaching method is explanation. Explanation is characterized by its function as "a tool that is used by a speaker for understanding or 'giving a sense' to the object of communication, of a debate, or a discussion ... The role of an explanation is to make clearer the meaning of an object (method, term, assignment) maintaining formally the necessary distance between the object of the action or study and the tools. In the learning/teaching process, explanation is a tool used by both, teacher and students. Its goal is to manifest comprehension.