What is a key developmental milestone for children at the age of 4-6 months?

Recognizing familiar voices is indeed a key developmental milestone for children at the age of 4-6 months. At this stage, infants are beginning to develop their auditory skills and social connections. They can differentiate sounds and are particularly attuned to the voices of their caregivers. This helps support their emotional development and facilitates bonding between the infant and their parents or guardians.

During this period, infants are also starting to show their preferences for certain sounds and voices, which is crucial for their language development and social interaction. It indicates that they are becoming more aware of their environment and the people in it, contributing to their overall growth and learning.

In contrast, while babbling does start around this age, it typically becomes more pronounced beyond 6 months. Running and climbing are milestones that occur later, as they relate to gross motor skills that develop significantly during the toddler years. Recognizing letters is a cognitive skill generally associated with preschool-age children and comes much later in development. Thus, recognizing familiar voices is the most appropriate milestone for the 4-6 month age range.