Motor development skills are separated into two groups, gross motor, and fine motor skills. Gross motor skills use skills that involve large muscle movements like sitting, crawling, walking, or running. Fine motor skills involve the smaller muscles which are grasping, drawing, and object manipulation. Gross motor skills are developed earlier on within the first 3 – 24 months of their life, starting with holding their head up, to sitting up, rolling over, and crawling to larger things like standing, walking, and running. While their fine motor skills are developed later on around the 5-to-18-month range they will begin to grasp toys, or food, learn to turn toys over in their hands and draw or color.