At precise intervals (graduated intervals), the student is prompted to repeat phrases after the speaker finishes it
The student is then introduced to a new phrase and the meaning is explained (novelty)
After repeating a couple times, the student is asked to repeat the previous phrase but borrowing from the words and meaning of the new one (recall and construction)
More new phrases are introduced, while old phrases are prompted at random (anticipation). The random recalling keeps the student focused, forcing its mind to associate words with meanings.