Developmental Milestones

“The path of development is a journey of discovery that is clear only in retrospect, and it’s rarely a straight line.”
― Eileen Kennedy-Moore

Developmental Milestones.

 0-6  months

·         Establishes eye contact for a few seconds

·         Responds with a smile when socially approached

·         Recognizes parent visually

·         Discriminates strangers

·         Laughs in response to play

·         Distinguishes between friendly and angry voices

·         Manipulates and explores objects

·         Manipulates a rattle

Possible implications if milestones not achieved 

·         Imaginative play actions are absent or random

·         May lead to poor muscle development

·         May lead to a delayed ability to play independently

·         May lead to delayed sensory development due to delayed interaction with toys and other sensory objects

·         May lead to poor emotional development (e.g. may cry easily)

 6-12 months

·         Plays peek-a-boo

·         Participates in clapping when prompted

·         Lifts arms to parent

·         Responds to facial expressions

·         Extends toys to others

·         Manipulates and explores objects

·         Imitates an adult’s actions

·         Places doll with head upright and vertical to the ground

Possible implications if milestones not achieved 

·         Imaginative play actions are absent or random

·         May lead to delayed sensory development due to lack of sensory play experiences

·         May lead to delayed fine motor skills due to lack of practice manipulating toys and objects

·         May have difficulties socializing with parents and joint attention

·         May struggle to copy and learn from others due to poor understanding and attention

 1-2 years

·         Has toy preferences

·         Identifies self in mirror

·         Imitates adult behavior

·         Likes repetitive actions such as putting objects in and out of boxes and scribbling on many pages

·         Imitates a pretend play action (e.g. giving a drink)

·         Demonstrates play related to their body (e.g. sleeping, eating)

·         Spontaneously performs one action with a doll (e.g. hugs doll)

·         Uses a similar looking object for the needed object (e.g. uses paper as a blanket)

·         Is unable to share and competes with other children for toys

·         Looks for hidden objects

·         Begins to play next to other children

·         Observes other children playing around them but will not play with them

·         Engages in imaginative play

·         Says “hi”, “bye” and “please” without prompting

Possible implications if milestones not achieved 

·         May lead to delayed fine motor skills due to lack of practice manipulating toys and objects

·         May have difficulties socializing with parents and joint attention

·         May struggle to copy and learn from others due to poor understanding and attention

 2-3 years

·         Has a strong sense of ownership

·         May begin cooperative play

·         Treats doll or teddy as if it is alive

·         Plays alongside others but will not play together with them

·         Begins to use symbols in their play such as a stick becoming a sword

·         Play themes reflect less frequently experienced life events (e.g. visiting the doctor)

·         Play actions are detailed and logical with “No”

·         Uses or plans story-line

·         Has an awareness of a parent’s approval or disapproval of their actions

·         Will express emotions

·         Will verbalize their desires/feelings (e.g. “I want a drink”)

·         Begins to obey and respect simple rules

Possible implications if milestones not achieved 

·         May have difficulties socializing with peers and joint attention

·         May struggle to copy and learn from others due to poor understanding and attention

·         May lead to delayed fine motor skills due to lack of practice manipulating toys and objects

·         May lead to delayed manipulation of small objects such as toys, pencils and scissors

·         May result in frustration when manipulating small toys and objects

 3-4 years

·         Plays with mechanical toys

·         Takes turns with other children

·         Plays with 2 or 3 children in a group

·         Play themes expand beyond personal experience (e.g. fireman rescuing people)

·         Talks about their feelings

·         Feels shame when caught doing the wrong thing

Possible implications if milestones not achieved 

·         May have difficulties socializing with peers

·         May struggle to copy and learn from others due to poor understanding and attention

·         May have difficulties expressing wants, needs, thoughts and ideas

·         May display frustration when manipulating small toys and objects

 4-5 years

·         Begins taking turns and negotiating

·         Plays together with shared aims of play with others

·         Usually prefers playing with other children than playing by themselves

·         Plays imaginatively (e.g. playing in the home-corner, dressing up, cooking)

·         Enjoys playing games with simple rules (e.g. hide and seek)

·         May change the rules of a game as the activity progresses

Possible implications if milestones not achieved 

·         May have difficulties socializing

·         May struggle to copy and learn from others due to poor understanding and attention

·         May have difficulties expressing wants, needs, thoughts and ideas

·         May lead to poor self-esteem due to difficulties interacting with other children

 5-6 years

·         Play themes include themes never personally experienced (e.g. going to space)

·         Plays and negotiates with others during play

·         Play is well organized

Possible implications if milestones not achieved 

·         May have difficulties socializing

·         May have difficulties retelling events

·         May have difficulties following routines

·         May have difficulties expressing thoughts and ideas verbally and in written form

·         May lead to poor self-esteem due to difficulties interacting with other children

 6-7 years

·         Enjoys playing in small groups and making up their own games with rules

·         Enjoys playing co-operative games but has difficulties coping with losing

·         Likes to play with other children of their own gender

·         Enjoys using and understanding rules in play

Possible implications if milestones not achieved 

·         May have difficulty socializing

·         May have difficulty following instructions at home and at school

·         May have difficulty retelling events

·         May have difficulty expressing thoughts and ideas verbally and in written form

·         May lead to poor self-esteem due to difficulty interacting with other children

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CDC guidelines.

Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move (crawling, walking, etc.).

Click below to see the CDC guidelines for milestones

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Ages and Stages.

The Ages & Stages Questionnaires®, Third Edition (ASQ®-3) pinpoints developmental progress in children between the ages of one month to 5 ½ years. Its success lies in its parent-centered approach and inherent ease-of-use—a combination that has made it the most widely used developmental screener across the globe.

Evidence shows that the earlier development is assessed—the greater the chance a child has to reach his or her potential.

“Parents who have more than one child are very aware that, while we certainly have an impact on our child's development, it has as much to do with them as with us. "I can't believe how different my kids are" should inform us that child development is an uneven process only partly tied to parenting (and no one knows exactly how much that "partly" is).”
― Madeline Levine