Final answer:
During the first year of life, babies go through important haptic sensory development. By their first birthday, toddlers can use a variety of methods to explore their environment through touch.
Step-by-step explanation:
During the first year of life, babies go through important haptic sensory development. They use a variety of methods to explore their environment through touch. For example, they stroke their face, touch their limbs, and suck their thumb. They also have a well-developed sense of touch and respond positively to soft stroking, cuddling, gentle rocking, and warm baths. These experiences can help calm a crying infant. By their first birthday, toddlers can use their motor skills to pick up objects, turn through pages of a book, and use a pincer grasp. They may even be able to play with a ball by rolling or tossing it.