The document discusses motor skills development in infants and toddlers. There are two types of motor skills - gross motor skills involving large body movements and fine motor skills using small hand and finger movements. Gross motor skills progress from rolling over and sitting to walking, running and jumping as toddlers develop. Fine motor skills start with grasping objects and progress to picking up small items and using utensils. The document also outlines typical developmental milestones in vision, hearing, vocalization and social skills from 1 to 12 months of age.