Before answer the question we should make a distinction between what a discipline and a science is. Discipline is the rigorous and systematic knowledge related to a subject, while science is a combination of methods and techniques to acquire and organize the knowledge. The application of those methods and knowledge is addressed to acquire more knowledge. Likewise, science is seen as a set of scientific knowledge that are shown through theories.
Despite of didactics is taken as a new discipline, in the last 40 years there has been a growing awareness of the complexity of language teaching. That is the reason why there is a participation of language science in language teaching. Thus, teaching language borrowed theories from Psychology, linguistic and sociolinguistic fields.
As a result of this, Didactics is a science whose
object of study is the teaching and learning language process which is
characterized by a system of concepts, categories, laws and principles that are
consequently built in and enhance and address their development. In other words, didactic in this case
FLD achieves the learning of concepts, procedures, attitudes, habits and skills
related to a foreign language; which implies as Alvarez argues, “que el didacta
debe disponer de un cuadro teórico de referencia lo más amplio posible, que le
permita observar mejor los problemas reales que se dan en las aulas de nuestras
escuelas e institutos, y así poder construir el objeto de la didáctica, que no
se olvide, pasa primordialmente por la intervención.” (Alvarez T. 1998:185)
3 Towards a Conceptual framework