Children’s language development: the functions of children’s language

The idea

Children’s language serves many functions beyond naming objects. It can satisfy needs, control others, express feelings, create imaginary worlds, share information and maintain relationships. A child saying ‘want juice’ performs a demand, while ‘teddy gone’ comments on the world and ‘me doctor, you poorly’ sustains pretend play. Analysts examine what a child is trying to do with language, how functions develop with age and social experience, and how caregivers respond. Functional categories help students move beyond counting words to interpreting purpose in context. Assessment rewards close reference to transcribed child language, accurate identification of function and explanation of how function links to the child’s stage, setting and relationship with participants.

What earns the marks

• Identify a range of functions of children’s language, including instrumental, regulatory, interactional, personal, heuristic, imaginative and representational uses.
• Explain how a child’s utterance performs a function in context, using the surrounding exchange rather than the words alone.
• Trace development in functional range, showing how children move from immediate needs towards information sharing, storytelling and sustained social interaction.
• Analyse how caregivers, siblings and peers scaffold or extend the functions a child uses, for example through questions, expansions or recasts.
• Link functional choices to relevant frameworks such as pragmatics, speech acts, turn-taking and lexical or grammatical development.
• Support every functional claim with a short, accurately transcribed example and an explanation of its purpose in that interaction.

Common mistakes and how to put them right

• Labelling an utterance with a function without contextual evidence.

  Put it right: Quote the surrounding exchange and justify the function from what the child achieves.

• Assuming one utterance has only one function.

  Put it right: Recognise that functions can overlap, such as an imaginative utterance that also builds a relationship.

• Treating functional development as strictly age-determined.

  Put it right: Account for context, interaction partner and individual variation when interpreting a child’s language.

Exam tips

• Use the function labels as analytical tools, not a checklist: select the two or three most relevant functions and explain them in depth.
• Anchor each point in a short quotation from the transcript and state what the child is doing with that language.
• Connect functions to the child’s stage of development and to the responses of other participants to show interactional context.