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1 month
- lifts head and turns it from one side to the other when placed on stomache
- focuses on an object from about 10 inches up to 3 feet away
- reacts to parent's voice
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2nd month
- makes sounds such as "ooh" and "aah"
- watches objects moved about 6 inches away from face
- responds to more sounds and different pitches of voice
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3rd month
- opens and closes hands
- holds head steadily when held up
- lifts head and chest when on stomach
- swipes at objects
- brings hands together
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4th month
- support upper body on hands when lying on stomache
- shows preference for red and blue over yellow
- may begin to use vowel and consonants in babbling, such as "ah ga"
- grasps rattles
- puts hand in mouth
- rolld from tummy to back
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5th month
- rocks on stomache while kicking legs and making swimming motions with arms
- reaches out and grabs toys
- turns head in direction of sound
- knows positive speech from unhappy speech
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6th month
- passes a block from one hand to the other
- puts objects to mouth with hand
- may begin creeping
- recognizes basic sounds of native language
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7th month
- rolls over both ways
- sits up steadily
- stands with assistance
- knows parents and caregivers by their voices and by sight
- can follow a path of moving objects with eyes
- babbles with strings of vowels and consonants, such as "ba,ba,ba"
- grabs for objects with ranking motion
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8th month
- pulls self up to standing
- bangs blocks together
- propels self by arms, knees, or squirming motion
- looks at objects with sustained attention
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9 months
- uses index finger to poke
- puts objects in containers
- leans forward to pick up a toy
- notices small objects
- may start associating sounds with objects
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10th month
- crawls well
- can put objects in containers
- uses index finger to start pointing
- imitates new word sounds more frequently
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11th month
- walks while holding onto furniture or crib rails for support
- uses gestures like shaking head for no
- releases objects intentionally
- grabs with thumb and forefinger
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12 months
- may walk a few steps alone
- stands alone for short time
- picks up small objects using thumb and forefinger
- puts object into and takes them out of containers
- holds and drinks from cup