
If hungry, opens mouth when she sees breast or bottle. Turns head towards the sound of your voiceĬognitive Milestones (learning, thinking, problem-solving. Makes sounds like “oooo”, “aahh” (cooing). Looks at you, moves, or makes sounds to get or keep your attention. Chuckles (not yet a full laugh) when you try to make her laugh. Smiles on his own to get your attention. What most babies do by this age: Social/Emotional Milestones Act Early.” materials are not a substitute for standardized, validated developmental screening tools. Developmental milestones are things most children (75% or more) can do by a certain age.Ĭheck the milestones your child has reached by the end of 4 months by completing a checklist with CDC’s free Milestone Tracker mobile app, for iOS and Android devices, using the Digital Online Checklist, or by printing the checklist below.
How your child plays, learns, speaks, acts, and moves offers important clues about your child’s development.