Birth to 12 months
From birth until about one year of age babies develop at an incredible rate. They learn how to hold up their heads; roll over; sit unassisted; crawl; and for some they can walk. During this time babies learn about their bodies. They are aware of their fingers and toes and find much amusement in playing with them. They even begin to recognize their name.
Communication skills are also developing. At first babies cry to have their needs met. Later they say mama and dada. As time passes they play with more and more sounds and begin to connect them to a few close people and objects