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Understanding child development


Introduction to child development

A child's development is the result of a combination of their genetic make-up, temperament and life experiences. Specific developmental stages are identified by physical, psychological and emotional characteristics that are distinctive at each stage.

Parents are responsible for developing the child's physical, psychological and emotional growth. As these growth areas are interrelated, a delay in one area may obstruct the development of the other areas. Research suggests that the earlier the delay in any of these growth areas, the more severe the long-term affects will be on the child.

Understanding the characteristics associated with each stage of development will help the child to grow. Research suggests that adoptive parents who understand the issues associated with a child's development are less likely to be upset by normal behaviours and more likely to support the child as they experience the challenges of each developmental stage.

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Stages of child development (0 - 5 years)

The table below provides an overview of a child's physical, emotional and social development from birth to five years of age. It is important to note that the age groupings are an average breakdown only. Some children may reach various developmental stages earlier or later than the average and will still be within the normal range.

Stage Physical and language Emotional Social
Birth to 1 month
  • Feedings: five to eight per day.
  • Sleep: 20 hours per day.
  • Sensory capacities: makes basic distinctions in sight, sound, smell, taste, touch, temperature and perception of pain.
  • Generalised tension.
  • Helpless.
  • Fed by mother.
2 - 3 months
  • Sensory capacities: colour perception, visual exploration, oral exploration.
  • Sounds: cries, coos, grunts.
  • Motor ability: control of eye muscles, lifts head when on stomach.
  • Delight.
  • Distress.
  • Smiles at face.
  • Visually fixates at a face; smiles at a face.
  • May be soothed by rocking.
4 - 6 months
  • Sensory capacities: localises sounds.
  • Sounds: babbling, makes most vowels and about half of the consonants.
  • Feedings: three to five per day.
  • Motor ability: control of head and arm movements, purposeful grasping, rolls over.
  • Enjoys being cuddled.
  • Recognises mother.
  • Distinguishes between familiar persons and strangers, no longer smiles indiscriminately.
  • Expects feeding, dressing and bathing.
7 - 9 months
  • Motor ability: control of body and hands, sits without support, crawls about.
  • Specific emotional attachment to mother.
  • Protests separation from mother.
  • Enjoys 'peek-a-boo'.
10-12 months
  • Motor ability: control of legs and feet, stands, crawls, apposition of thumb and forefinger.
  • Language: says one or two words, imitates sounds, responds to simple commands.
  • Feedings: three meals, two snacks.
  • Sleep: 12 hours, two naps.
  • Anger.
  • Affection.
  • Fear of strangers.
  • Curiosity, exploration.
  • Responsive to own name.
  • Waves goodbye.
  • Plays pat-a-cake
  • Understands 'no'.
  • Gives and takes objects.
12-18 months
  • Motor ability: crawls up stairs, walks (10-20 minutes), makes lines on paper with crayon.
  • Dependent behaviour.
  • Very upset when separated from mother.
  • Fear of bath.
  • Obeys limited commands.
  • Repeats a few words.
  • Interested in their mirror image.
  • Feed themselves.
18 months - 2 years
  • Motor ability: runs, kicks a ball, builds six cube towers (at two years), capable of bowel and bladder control.
  • Language: vocabulary of more than 200 words.
  • Sleep: 12 hours at night, one to two hour nap.
  • Temper tantrums (one to three years).
  • Resentment of new baby.
  • Does opposite of what they are told (18 months).
2 - 3 years
  • Motor ability: jumps off a step, rides a tricycle, uses crayons, builds a 10 cube tower.
  • Language: starts to use short sentences, controls and explores world with language, stuttering may appear briefly.
  • Fear of separation.
  • Negative (two and a half years)
  • Violent emotions, anger.
  • Differentiates facial expressions of anger, sorrow and joy.
  • Sense of humour (plays tricks).
  • Talks, uses 'I', 'me' and 'you'.
  • Copies parents' actions.
  • Dependent, clinging, possessive about toys, enjoys playing alongside another child.
  • Resists parental demands.
  • Gives orders.
  • Rigid insistence on sameness of routine.
  • Inability to make decisions.
3 - 4 years
  • Motor ability: stands on one leg, jumps up and down, draws a circle and a cross (four years), self- sufficient in many routines of home life.
  • Affectionate toward parents.
  • Pleasure in genital manipulation.
  • Romantic attachment to parent of opposite sex (three to five years).
  • Jealousy of same-sex parent.
  • Imaginary fears of darkness or injury (three to five years).
  • Likes to share, uses 'we'.
  • Cooperative play with other children, nursery school.
  • Imitates parents.
  • Beginning of identification with same-sex parent, practices sex-role activities.
  • Intense curiosity and interest in other children's bodies, imaginary friend.
4 - 5 years
  • Motor ability: mature motor control, skips, broad jumps, dresses themselves, copies a square and a triangle.
  • Language: talks clearly, uses adult speech sounds, has mastered basic grammar, relates a story, knows over 2,000 words (five years).
  • Responsibility and association.
  • Feels pride in accomplishment.
  • Prefers to play with other children, becomes competitive, prefers sex-appropriate activities.

For more information about the stages of social development, visit the Child Development Institute website.

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Activity 1 - Jasmine's story

Photograph: stock image by Nolte Lourens.

When Jasmine came to me at 12 weeks old, she was completely unresponsive, not waking for feeds, not responding to me, and not showing any emotion. She had just switched off. I had to stay close to her and respond to even the slightest sound or facial movement and keep talking to her and touching her. It took time, but gradually she started to show different feelings and become more responsive.

Schofield & Beek, 2006, p. 161

In your learning journal, comment on the following question:

  1. As adoptive parents of Jasmine, how would you encourage her attachment and development?

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Activity 2 - Understanding child development

In your learning journal, comment on the following questions:

  1. What is your understanding of child development?
  2. Can you identify the developmental characteristics of a child corresponding to the age of the child that you wish to adopt?
  3. If a child has resided in an orphanage for their entire life or has been severely malnourished, do you think there would be any areas of development that would be affected? If so, what would these be?
  4. If a child has resided with foster carers for their entire life, do you think there would be any areas of development that would be affected? If so, what would these be?
  5. If a child's understanding and perception of adoption depends on their age, how would you explain adoption to your child at different stages of their development?

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Last updated
19 October 2007

Module 3 - Child development