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Recognising delayed or atypical development
A young boy in a supportive chair holds one of the finger's of his teacher's
                  hand

Some children develop differently and do not follow the expected pattern of development. Delayed or atypical development is recognised by comparing with typical milestones.

  • Typical (or 'normal') development;
  • Delayed development – follows the typical pattern, but at a much slower pace (the developmental milestones will be reached in the right order, but later than most children);
  • Atypical/disordered development – the usual sequence of milestones is not followed, there is something different about the way the child develops;
  • Borderline development – between typical and atypical.