The objective of didactics concern to answer two questions What to teach: (content) here, the teacher concern about what is the knowledge students need to acquire in order to improve his abilities. and how to teach: (process) what procedures, techniques, teacher needs to take into account in order to guide properly the teaching and learning process.
In other words, didactic can be defined as the discipline that studies techniques, procedures, strategies, and methods that contribute the teaching process for students to approach in a wide, deep, and meaningful way the knowledge in the process of acquisition of a foreign language.
A discipline of pedagogical nature that focuses on the teaching goals and compromise with the aim of better human begins through the understanding and permanent change of the social communicative developments, and the receiving and appropriate growth of the teaching and learning process. Medina (2003).