Related: Here's how to help develop your third-grader's physical health. Children’s gross motor skills, which involve whole-body movement, are just about fully developed around this age, although they ...

It can be hard to imagine how newborns on playmats could soon grow into fearless five-year olds riding bikes and climbing trees. These gross motor skills play a key role in how little people explore ...

Their gross motor skills, which involve whole-body movement, are fully developed by this age, although they will continue to be refined over the next few years. The same applies to fine motor skills, ...