Child development stages

At 1 months :
Most babies will
- Respond to a sound, like a bell
- Focus on faces
- Lift their head
Some babies can
- Follow an object held several inches in front of their face
- Make sounds other than crying, like cooing
- Smile when you smile
A few babies may
- Laugh
- Smile on their own
- Follow an object from side to side (180°)

At 2 months :
Most babies will
- Hold their head up for a few seconds
- Follow an object
- Coo and gurgle
Some babies can
- Hold their head up at a 45° degree angle
- Concentrate on a small object, like a pea
- Roll over in one direction
A few babies may
- Lift their head and chest off of the floor
- Bring their hands together
- Lift their head 90°

At 3 months :
Most babies will
- Laugh
- Hold their head steady
- Squeal in pleasure
Some babies can
- Recognize your voice
- Hold a rattle when it is placed in their hand
- Support their lifted chest with their arms
A few babies may
- Bear some weight on their legs
- Reach for toys
- Turn towards loud sounds

At 4 months :
Most babies will
- Support their lifted chest with their arms
- Hold upright head steady
- Respond when you talk with coos and gurgles
Some babies can
- Roll over in one direction
- Keep head up when pulled to a sitting position
A few babies may
- Sit unsupported
- Imitate sounds
- Protest if you take a toy away

At 5 months :
Most babies will
- Roll over in one direction
- Play with their hands and feet
- Reach for an object
- Bear some weight on their legs
Some babies can
- Turn toward a voice or new sound
- Know their own name
- Sit unsupported
A few babies may
- Pull-up to standing from sitting
- Babble
- Be afraid of strangers

At 6 months :
Most babies will
- Sit unsupported
- Turn toward a voice
- Roll over in both directions
Some babies can
- Protest when a toy is taken away
- Pass an item from hand to hand
- Be ready for solids
A few babies may
- Pick up very small objects with their thumb and finger
- Start crawling
- Say "mama" or "dada" although not to the correct parent

At 7 months :
Most babies will
- Imitate speech sounds
- Try to get toys that are out of reach
- Look for a dropped object
Some babies can
- Stand while holding onto something
- Crawl
A few babies may
- Wave bye-bye
- Play patty-cake
- Bang things together

At 8 Months :
Most babies will
- Eat a cookie unassisted
- Crawl
- Pass an item from hand to hand
Some babies can
- Crawl well
- Point to an object
- Say "mama" or "dada" although not to the correct parent
A few babies may
- Walk while holding onto furniture (cruise)
- Understand "no"
- Gesture to what they want

At 9 Months :
Most babies will
- Stand while holding onto something
- Play Peek-A-Boo
- Say "mama" or "dada" although not to the correct parent
Some babies can
- Play Patty Cake
- Cruise
- Understand "no"
A few babies may
- Say "mama" or "dada" to correct parent
- Drink from cup alone
- Stand on their own

At 10 Months :
Most babies will
- Pick up items with thumb and finger
- Wave bye-bye
- Understand "no"
Some babies can
- Gesture to what they want
- Stand on their own
- Say "mama" or dada" to correct parent
A few babies may
- Stand freely for a few seconds
- Stand alone well
- Walk

At 11 Months :
Most babies will
- Say "mama" or dada" to correct parent
- Stand alone momentarily
- Play Patty Cake
Some babies can
- Say one word aside from "mama/dada"
- Put an item in a container
- Understand basic directions
A few babies may
- Stoop down from a standing position
- Walk well
- Say three or more words aside from "mama/dada"

At 12 Months :
Most babies will
- Gesture to what they want
- Say one word aside from "mama/dada"
- Imitate others
Some babies can
- Walk
- Roll a ball back to you
A few babies may
- Scribble
- Pick up an object while standing