Articulatory approach for teaching pronunciation

The Articulatory approach to teaching pronunciation considers learning how to pronounce a second language to be a motor skill which most students are not in a position to develop based on self-evaluation of their production. The role of the teacher is therefore to provide feedback on students' performance as part of coaching them in the movements of the vocal tract articulators (tongue, jaw, lips, etc.) which create speech sounds.

Source: Wikipedia — Articulatory approach for teaching pronunciation (CC BY-SA 4.0)