Nine Months

Social and Emotional

• May be afraid of strangers
• May be clingy with familiar adults
• Has favorite toys

Language/Communication

• Understands “no”
• Makes a lot of different sounds like “mamamama” and “bababababa”
• Copies sounds and gestures of others
• Uses fingers to point at things

Cognitive (learning, thinking, problem-solving)

• 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

Movement/Physical Development

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

Source: https://www.cdc.gov/ncbddd/actearly/milestones/milestones-9mo.html