Developmental Milestones 12 months old
Developmental Milestones by the End of 12 Months

Social and Emotional
  • Shy or anxious with strangers
  • Cries when mother or father leaves
  • Enjoys imitating people in his/her play
  • Shows specific preferences for certain people and toys
  • Tests parental responses to his/her actions during feedings. (What do you do when he/she refuses a food?)
  • Tests parental responses to his/her behavior. (What do you do if he/she cries after you leave the room?)
  • May be fearful in some situations
  • Prefers mother and/or regular caregiver over all others
  • Repeats sounds or gestures for attention
  • Finger-feeds him/herself
  • Extends arm or leg to help when being dressed

Movement
  • Reaches sitting position without assistance
  • Crawls forward on belly
  • Assumes hands-and-knees position
  • Creeps on hands and knees
  • Gets from sitting to crawling or prone (lying on stomach) position
  • Pulls self up to stand
  • Walks holding on to furniture
  • Stands momentarily without support
  • May walk two or three steps without support

Language
  • Pays increasing attention to speech
  • Responds to simple verbal requests
  • Responds to "no"
  • Uses simple gestures, such as shaking head for "no"
  • Babbles with inflection
  • Says "dada" and "mama"
  • Uses exclamations, such as "Oh-oh!"
  • Tries to imitate words

Cognitive
  • Explores objects in many different ways (shaking, banging, throwing, dropping)
  • Finds hidden objects easily
  • Looks at correct picture when the image is named
  • Imitates gestures
  • Begins to use objects correctly (drinking from cup, brushing hair, dialing phone, listening to receiver)

Developmental Health Watch

Each baby develops in his/her own manner, so it's impossible to tell exactly when your child will perfect a given skill. Although the developmental milestones will give you a general idea of the changes you can expect as your child gets older, don't be alarmed if his/her development takes a slightly different course.
Alert your pediatrician if your baby displays any of the following signs of possible developmental delay in the 8- to 12-month age range.
  • Does not crawl
  • Drags one side of body while crawling (for over one month)
  • Cannot stand when supported
  • Does not search for objects that are hidden while he watches
  • Says no single words ("mama" or "dada")
  • Does not learn to use gestures, such as waving or shaking head
  • Does not point to objects or pictures

Excerpted from Caring for Baby and Young Child: Birth to Age 5, Bantam 1999

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