Your child will be taught to move between the informal type of language we use in everyday speech and more formal ways of writing and speaking.
Informal language includes contractions (for example, ‘can’t’), colloquial language (‘mates’), abbreviations (‘TV’ instead of ‘television’), double negatives (‘he hasn’t got none’), and dialect-specific subject-verb agreement (‘we was’ instead of ‘we were’). Formal writing tends to avoid these.
Your child will think about the purpose of their writing and their audience to choose the right level of formality. They will be taught to control sentence structure in their writing and understand why sentences are written differently for different purposes.