The knowledge of the mother tongue is a valuable aid to the teaching of English. The teaching of a native language and that of a foreign language can mutually reinforce and enhance one another; regardless of whether the language in question is the native tongue or a foreign language, many of the pedagogical approaches employed will exhibit significant similarities, and the foundational principles guiding these approaches will largely align.

 When adequate emphasis is placed on the teaching of the mother language, and if it is delivered effectively, beneficial habits may be cultivated in that class, which will significantly aid in the learning of English.