The audiolingual method was developed in the 1950s in response to the US military's need to rapidly teach languages during WWII. It views language as a set of habits learned through repetition and reinforcement. Lessons focus heavily on drilling pronunciation and grammar patterns through repetition exercises. While it was effective for teaching basic oral skills, critics argue its theoretical foundations were weak and lessons were boring. It declined in the 1970s as newer methods prioritized meaningful communication over habit formation.