Audio-lingualism
Audio-lingual methodology owes its existence to the Behaviourist models of learning using the Stimulus-Response-Reinforcement model, it attempted, through a continuous process of such positive reinforcement, to engender good habits in language learners.
Audio-lingualism relied heavily on drills like substitution to form these habits.
Habit-forming drills have remained popular among teachers and students, and teachers who feel confident with the linguistic restriction of such procedures.