Motor skills
The abilities needed by a person to move his/her body to carry out a task; these abilities require the brain, nerves, skeleton, joints, and muscles to work together. There are two types: gross motor skills (e.g., rolling over, sitting up, balancing, crawling, walking); and fine motor skills (e.g., using small objects such as a spoon, transferring an object from one hand to the other).32 For more information about how motor skills were determined in data presented in this report, see the corresponding figure notes.