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Developmental Milestones: Nine Months

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Milestones matter! How your child plays, learns, speaks, acts, and moves offer important clues about his or her development. Look for these developmental milestones in your 9-month-old.

Physical:

  • Stands, holding on
  • Can get into sitting position
  • Sits without support
  • Pulls to stand
  • Crawls

Mental:

  • Watches the path of something as it falls
  • Looks for things he sees you hide
  • Plays peek-a-boo
  • Puts things in her mouth
  • Moves things smoothly from one hand to the other
  • Picks up things like cereal o’s between thumb and index finger

Social:

  • May be afraid of strangers
  • May be clingy with familiar adults
  • Has favorite toys
  • Understands “no”
  • Makes a lot of different sounds like “mamamama” and “bababababa”
  • Copies sounds and gestures of others
  • Uses fingers to point at things

Additional Tips for Caretakers:

You can help your baby learn and grow. Talk, read, sing, and play together every day. Below are some activities to enjoy with your 9-month-old baby today.
  • Pay attention to how he reacts to new situations and people; try to continue doing things that make your baby happy and comfortable.
  • As she moves around more, stay close so she knows you are nearby.
  • Continue with routines; they are especially important now.
  • Play games with “my turn, your turn.”
  • Say what you think your baby is feeling. For example, say, "You are so sad; let's see if we can make you feel better."
  • Describe what your baby is looking at; for example, “red, round ball.”
  • Talk about what your baby wants when he points at something.
  • Copy your baby’s sounds and words.
  • Ask for behaviors that you want. For example, instead of saying “don’t stand,” say “time to sit.”
  • Teach cause-and-effect by rolling balls back and forth, pushing toy cars and trucks, and putting blocks in and out of a container.
  • Play peek-a-boo and hide-and-seek.
  • Read and talk to your baby.
  • Provide lots of room for your baby to move and explore in a safe area.
  • Put your baby close to things that she can pull up on safely.
This information was obtained from the CDC’s Developmental Milestones Checklist. To find the original version, please visit www.cdc.gov.
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