Your Child learns to coordinate vision and the movements of arms and hands, — for example, seeing a toy and reaching for it.
At this stage, children in this situation try to look at their hands and then the object in front, and try to maneuver their hands to grab the object. Basically, they’re making use of their hand-eye coordination skills. As a result of this big step towards better motor control, they start picking up objects for observation and discovery – which, at this age, often means putting things in their mouths.
As the hand-eye coordination develops and the children get better at it, they will also begin moving objects between their two hands. A milestone many full-term babies attain at 6 months of age.
How to support this development
You can help Your Child develop this skill by rolling a tennis ball in front of the little one during tummy time or allowing them to play with other round objects that challenge both arm and eye movements. Shake a toy within the distance that Your Child can reach so the little one feels encouraged to try to reach for it.
Note: All children develop differently and at their own pace. For children born preterm, the referred timeframe for achieving the various developmental milestones might be incorrect.
Source: The information and graphs about when children reach specific milestones are taken from various sources, including the United States Center for Disease Control (CDC), the Denver Developmental Screening Test, and the State Institute of Early Childhood Research, Germany (IFP).
Ketsupa Jirakarn (Mental health specialist) (10 June 2021)