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Needs head support for head 1 month -
Able to place objects in mouth 4 Months -
Prefers to look at human faces and patterned objects 1 Month -
Looks at an object 4 Months -
Smiles at self in mirror 5 Months -
Searches for a hidden objects 8 Months -
Responds appropriately to a few specific words 9 Months -
Speaks first recognizable word 10 Months -
Recognizes a parent's voice 1 Month -
Enjoys music and may mimic movements others make to music 10 Months -
Quiets in response to being held 2 Months -
Enjoys social aspects of feeding time 4 Months -
Mat begin to show fearful behavior as separateness is felt 5 Months -
Can hold head up for a few seconds 2 Months -
On tummy 4 Months -
Can roll from tummy to back 5 Months -
Points to desired object 7 Months -
Grabs at any and all object in reach 6 Months -
Is able to pick up small objects and string 8 Months -
Rolls from back to tummy 6 Months -
Sits alone 9 Months -
May be able to pull self to a standing position 7 Months -
Stands Alone 11 Months -
Takes off shoes and socks 11 Months -
Stands with little support 10 Months -
Uses index finger to point 9 Months -
Climbs up and down stairs 12 Months -
Likes to walk holding caregiver's hands 10 Months -
Uses pincer grasp -
Coordinates eye movements 2 Months -
Smiles 4 Months -
Finds objects that are totally hidden 9 Months -
Puts nesting toys together correctly 12 Months -
Begins to find familiar objects 10 Months -
Likes to look at pictures in a book 11 Months -
Likes to open containers and look at their contents 11 Months -
Waves good-bye 12 Months -
Looks at a person alertly and directly 2 Months -
May form an attachment to one special object 4 Months -
Distinguishes between familiar and unfamiliar adults 5 Months -
Responds to continued warmth and affection 4 Months -
Enjoys playing with children 6 Months -
Shows interest in play activities of others 9 Months -
May be able to show symbolic thought by giving love to a stuffed toy or mimic behaviors of others 10 Months -
Definitely prefers caregiver to strangers 8 Months -
Shows desire for social contact 7 Months -
Is comforted by the human face 1 Month -
Likes to play games like pat-a-cake 9 Months -
May not always want to be cooperative 11 Months -
Begins to develop self-identity and independence 12 Months -
Enjoys playing with siblings 12 Months -
Likes to say no and shake head to get response from a caregivver 11 Months -
Laughs when tickled 4 Months -
Likes attention and may cry to get it 6 Months
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Begins to have a sense of humor 7 Months
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Fears strange places 10 Months -
Recognizes the social nature of mealtime 9 Months -
May show a fear of new sounds 9 Months -
Likes attention and may cry to get it 6 Months -
Begins to have a sense of humor 7 Months -
Tests caregivers to determine limits 11 Months -
May resist napping 12 Months -
Exhibits fear of strangers 8 Months -
Cries less often 10 Months -
Objects to having his or her enjoyable play stopped 11 Months -
Continues to test caregiver's limits 12 Months