Developmental Stages of children (6, 12, 18 and 24 months old)


6 months

Cognitive development

  • Six-month-old babies are very interested in people. They make eye contact and smile.
  • They are also very interested in grabbing, holding and tasting everything that they can hold in their small hands, since mouthing things is the babies’ way of exploring the world.
  • Playing peek-a-boo teaches the child that things that go away come back.
  • They also enjoy small books with simple pictures. Remember that children need human-to-human interaction in order to learn and thus they need us to dedicate them our time and play.

Social and Emotional Development

  • Even though children at this age have already developed a relationship with the close people around them, they exhibit “stranger anxiety”.
  • Sometimes, they focus on they play and the next moment they turn they gaze to another direction, ignoring the adults and their games. This happens because they feel over excited by the stimuli and need to calm themselves down. If you understand that this is happening, bring them in another room, turn the lights down and maybe you would like to put relaxing music.
  • They also begin to show many different emotions, like fear, happiness, joy, disappointment, surprise and curiosity (Gottman, 2011).

Language and Communication Development

  • Children at this stage may make loud noises and wave their hands.
  • They also react to the emotions of others and they start to copy their parents’ facial expressions. (See a study about the face-to-face interaction between mother and infant, Tronick & Cohn, 1989).
  •  Moreover, when parents talk to them, they will make sounds back and use babbling sounds.
  • In order to enhance your baby’s listening skills, start to talk to them about everything, name the things that the baby is staring at and explain how they are used.

Muscle Development

  • While sitting, the baby can hold his head steady and his body straight but he may need some support to sit. Use pillows and cushions to support him sitting and soften his fall.
  • They can roll over from tummy to their back and vice versa.
  • It is important to encourage a baby’s motor or small muscle development by giving him toys he can explore with his fingers and/or encourage him to use both hands. However, it will take some more weeks before he is able to use his thumb and fingers to pick up small object and to exhibit a hand preference.

!If your child seems to have tight muscles, or very floppy, refuses to cuddle, shows no special reaction for his guardians, does not respond to sounds or has difficulty in getting objects to his mouth contact your pediatrician or your health care provider!

Here is a video you can watch about the development of 6-months-old babies.


Tronick, E. Z., & Cohn, J. F. (1989). Infant-mother face-to-face interaction: Age and gender differences in coordination and the occurrence of miscoordination.Child development, 85-92.

Gottman, J., 2011. Raising an emotionally intelligent child. Simon and Schuster.


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