The document discusses the use of songs, rhymes, chants and poems in language classrooms, noting that they are highly memorable tools that can be used to introduce, practice, and reinforce vocabulary and structures in an engaging way. It provides examples of different types of songs, chants, and rhymes that can be used at various stages and in various ways, such as for warm-ups, practicing pronunciation, celebrating accomplishments, and more. Criteria for selecting songs and activities for working with them are also outlined.