I need to support the English learners´ oral skills development through the use of the teacher´s voice (vocal instruction) as a Coach. Most of the literature refers to oral instruction .
I'm not completely clear about these terms, but it's possible that vocal instruction is focused on teaching a language learner to produce sounds close to those of a native speaker whereas oral instruction is more general, meaning using oral (as opposed to written) production to teach. Might this help to clarify the distinction?