Developmental Milestones

How your child plays, learns, speaks, acts and moves all offer important clues about your child’s development.

Developmental milestones are things most children can do by a certain age.

These guidelines for specific ages were developed by the national Centers for Disease Control and Prevention to help you assess how your child is developing, learn how you can help and know when to seek professional assessment.

Act early by talking to your child's doctor if your child:

  • Doesn't watch things as they move.
  • Doesn't smile at people.
  • Can't hold head steady.
  • Doesn't bring hands to mouth.
  • Doesn't coo or make sounds.
  • Has trouble moving one or both eyes in all directions.

If you're concerned, act early.

Tell your child’s doctor or nurse if you notice any of these signs of possible developmental delay for this age.

For more help, contact the Child Development Center, which offers screening and support services throughout Western Montana. By telephone at 406.549.6413 or 1.800.914.4779, or online at

The American Academy of Pediatrics recommends that children be screened for general development using standardized, validated tools at 9, 18, and 24 or 30 months and for autism at 18 and 24 months or whenever a parent or provider has a concern. Ask your child's doctor about your child's developmental screening.