The lesson typically begins with a dialogue, which contains the structures and vocabulary of the lesson. The student is expected to mimic the dialogue and eventually memorize it (termed "mim-mem"). Often, the class practices the dialogue as a group, and then in smaller groups. The dialogue is followed by pattern drill on the structures introduced in the dialogue. The aim of the drill is to "strengthen habits", to make the pattern "automatic".
Following drill, some audio-lingual classes provide explanation. According to proponents of audio-lingualism, the explanation is a description of what was practiced, not a prescription of what to say. The "rules" presented are therefore not to be considered instructions on how to perform. The explanation section is considered optional, since, in our terms, it is "language appreciation".