The Audio-lingual Method

This method was employed by the U.S. army some years ago, due to the necessity of have soldiers who can communicate fluently in different languages and could work as an interpeters or translators of other troops.
It is based on the advising students and teaching them a language directly, without using their native language to explain new words or grammar in the target language, such as the direct method, however, unlike the direct method, the audio-lingual didn’t focus on teaching vocabulary but in the use of grammar. Audio-lingualism, there is no explicit grammar instruction, everything is simply memorized in form, the idea is that students can practice the particular construct until they can use it spontaneously. For this, lessons are built and planned based on differents drills like inflection, repetition, replacement and restatement.