A four-Domain picture at 9 months
Movement/Physical Development
Stable sitting, changing position, moving the body, using both hands, and more precise grasping make it easier to approach a goal independently. Crawling is one possible way to move; the larger question is how your baby organizes their body around an intention.
Cognitive
Your baby may look for something that falls or becomes partly hidden, bang and turn objects, and watch the result. Cognitive change is visible in sustained searching, comparing actions, and trying again—not only in answering a question.
Social/Emotional
Your baby increasingly distinguishes familiar from unfamiliar people and may look to your expression for information about a situation. Staying available, responding to a request for help, and then supporting a return to exploration can strengthen security.
Language/Communication
Babble, pointing, reaching, and gaze begin to serve clearer communicative purposes. Even before words, you can interpret a likely intention, respond, and use your baby's next reaction to keep the exchange going.
How to use this page
Developmental Milestones are foundational reference points that Better Parenting has aligned with the level about 75% of children can do by this age. Whole-child development Skills come from Growth Paths across four Domains and 31 Sub-Domains. They offer further directions for growth beyond the foundation—not expectations that every child should already meet every item or be ahead in every Sub-Domain.
This page contains 20 formal Milestones drawn from the CDC and UNICEF resources linked below. Not observing one item yet is not, by itself, a reason to panic. Continue noticing it during ordinary care, play, and conversation rather than turning the page into a concentrated test.
How to read the historical status
The icons summarize Milestone Assessments submitted by Better Parenting parents:
- ✅ Observed for nearly all: fewer than 10% were marked not yet observed.
- 🆗 Observed for most: 10% to under 20% were marked not yet observed.
- ⚠️ Not yet observed for many: 20% to 40% were marked not yet observed.
- ⛔ Not yet observed for a large share: more than 40% were marked not yet observed.
The largest valid sample for a single Milestone on this page is 410 children. These historical product data help families interpret the page and help Better Parenting improve its content. They are not estimates for the general child population and cannot be used for diagnosis.
Movement/Physical Development
Foundational Milestones
Gets to a sitting position by herself
Gross Motor | CDC + UNICEF | ⚠️ Not yet observed for many
What to notice: In a safe, familiar setting, notice whether your baby gets to a sitting position by herself. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Gross Motor Growth Path
Moves things from one hand to her other hand
Fine Motor | CDC | ✅ Observed for nearly all
What to notice: In a safe, familiar setting, notice whether your baby moves things from one hand to their other hand. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Fine Motor Growth Path
Uses fingers to “rake” food towards himself
Fine Motor | CDC | ✅ Observed for nearly all
What to notice: In a safe, familiar setting, notice whether your baby uses fingers to “rake” food towards himself. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Fine Motor Growth Path
Sits without support
Gross Motor | CDC + UNICEF | ✅ Observed for nearly all
What to notice: In a safe, familiar setting, notice whether your baby sits without support. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Gross Motor Growth Path
Pulls up (using furniture for support) to stand
Gross Motor | UNICEF | ⚠️ Not yet observed for many
What to notice: In a safe, familiar setting, notice whether your baby pulls up (using furniture for support) to stand. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Gross Motor Growth Path
Starting to crawl
Gross Motor | UNICEF | 🆗 Observed for most
What to notice: In a safe, familiar setting, notice whether your baby is starting to crawl. Focus on the movement they initiate and organize, and provide the support the situation requires rather than moving their body through the action as a test.
Explore the Gross Motor Growth Path
Cognitive
Foundational Milestones
Looks for objects when dropped out of sight (like his spoon or toy)
Memory | CDC | ✅ Observed for nearly all
What to notice: During familiar play or daily life, notice whether your baby looks for objects when dropped out of sight (like their spoon or toy). Leave time to respond and use what happens next as part of what you observe instead of repeating the situation until one expected answer appears.
Explore the Memory Growth Path
Bangs two things together
Exploration and Discovery | CDC + UNICEF | 🆗 Observed for most
What to notice: During familiar play or daily life, notice whether your baby bangs two things together. Leave time to respond and use what happens next as part of what you observe instead of repeating the situation until one expected answer appears.
Explore the Exploration and Discovery Growth Path
Likes to play peek-a-boo and look for things you hide
Memory | UNICEF | ⚠️ Not yet observed for many
What to notice: During familiar play or daily life, notice whether your baby likes to play peek-a-boo and look for things you hide. Leave time to respond and use what happens next as part of what you observe instead of repeating the situation until one expected answer appears.
Explore the Memory Growth Path
Tracks objects as they fall
Emergent Mathematical Thinking | UNICEF | ✅ Observed for nearly all
What to notice: During familiar play or daily life, notice whether your baby tracks objects as they fall. Leave time to respond and use what happens next as part of what you observe instead of repeating the situation until one expected answer appears.
Explore the Emergent Mathematical Thinking Growth Path
Social/Emotional
Foundational Milestones
Is shy, clingy, or fearful around strangers
Relationships with Adults | CDC + UNICEF | ⚠️ Not yet observed for many
What to notice: During a comfortable, familiar interaction, notice whether your baby is shy, clingy, or fearful around strangers. Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Relationships with Adults Growth Path
Shows several facial expressions, like happy, sad, angry, and surprised
Emotional Functioning | CDC | 🆗 Observed for most
What to notice: During a comfortable, familiar interaction, notice whether your baby shows several facial expressions, like happy, sad, angry, and surprised. Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Emotional Functioning Growth Path
Looks when you call her name
Relationships with Adults | CDC | 🆗 Observed for most
What to notice: During a comfortable, familiar interaction, notice whether your baby looks when you call their name. Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Relationships with Adults Growth Path
Reacts when you leave (looks, reaches for you, or cries)
Relationships with Adults | CDC + UNICEF | ✅ Observed for nearly all
What to notice: During a comfortable, familiar interaction, notice whether your baby reacts when you leave (looks, reaches for you, or cries). Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Relationships with Adults Growth Path
Smiles or laughs when you play peek-a-boo
Emotional Functioning | CDC | ✅ Observed for nearly all
What to notice: During a comfortable, familiar interaction, notice whether your baby smiles or laughs when you play peek-a-boo. Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Emotional Functioning Growth Path
Has favorite toys that they reach for often
Sense of Identity and Belonging | UNICEF | ✅ Observed for nearly all
What to notice: During a comfortable, familiar interaction, notice whether your baby has favorite toys that they reach for often. Understand the behavior alongside the people, feeling, and sequence around it rather than drawing a conclusion from one isolated response.
Explore the Sense of Identity and Belonging Growth Path
Language/Communication
Foundational Milestones
Makes a lot of different sounds like “mamamama” and “dadadada”
Communicating and Speaking | CDC + UNICEF | 🆗 Observed for most
What to notice: During an ordinary exchange, notice whether your baby makes a lot of different sounds like “mamamama” and “dadadada”. Gaze, gesture, sound, language, and what happens next can all clarify the communication; avoid requiring the behavior on cue as a test.
Explore the Communicating and Speaking Growth Path
Lifts arms up to be picked up
Communicating and Speaking | CDC | ✅ Observed for nearly all
What to notice: During an ordinary exchange, notice whether your baby lifts arms up to be picked up. Gaze, gesture, sound, language, and what happens next can all clarify the communication; avoid requiring the behavior on cue as a test.
Explore the Communicating and Speaking Growth Path
Pointing at things with their fingers
Communicating and Speaking | UNICEF | ⛔ Not yet observed for a large share
What to notice: During an ordinary exchange, notice whether your baby is pointing at things with their fingers. Gaze, gesture, sound, language, and what happens next can all clarify the communication; avoid requiring the behavior on cue as a test.
Explore the Communicating and Speaking Growth Path
Starts to copy movements they see and sounds they hear
Vocabulary | UNICEF | ⛔ Not yet observed for a large share
What to notice: During an ordinary exchange, notice whether your baby starts to copy movements they see and sounds they hear. Gaze, gesture, sound, language, and what happens next can all clarify the communication; avoid requiring the behavior on cue as a test.
Explore the Vocabulary Growth Path
Further Skills for Whole-Child Development
Takes turns in non-verbal conversations by using facial expressions, sounds, gestures, or signs to initiate or respond to communication.
Domain: Language/Communication | Sub-Domain: Communicating and Speaking
What to notice: When your baby raises a toy, looks at you, or vocalizes, might they be inviting you to look, asking for help, or wanting more information? Use context and what happens next to infer what they wanted the expression to accomplish.
How to support it: Communication begins before words: expression, sound, and gesture can initiate as well as answer. Interpret the signal actively, respond to confirm your understanding, and recalibrate from the baby's next reaction.
Keep in mind: Connecting initiation and response matters more than replacing the signal with one required form.
Explore the Communicating and Speaking Growth Path
May use signs or verbalizations for familiar people or objects.
Domain: Language/Communication | Sub-Domain: Vocabulary
What to notice: Does your baby use a relatively consistent gesture or sound to refer to a familiar person or object? Look for clear reference rather than treating every accidental sound as a word.
How to support it: Meaning can be carried by gestures and approximate sounds before conventional speech. Interpret the referent, answer with a clear word, and check your interpretation through the baby's response.
Keep in mind: Do not require exact imitation before responding or assign fixed meanings without repeated contextual evidence.
Explore the Vocabulary Growth Path
Common questions
Which age should I use if my child was born early?
For a child born more than 3 weeks early, the CDC recommends using corrected age when checking Milestones until age 2. Children differ, so you can also discuss the full pattern at a well-child visit.
Sources and notes
- Developmental Milestones: CDC Milestones near 9 months and UNICEF early childhood development resources. Better Parenting aligns its integrated formal list with a foundational reference level reached by about 75% of children by the stated age.
- Historical status comes from Milestone Assessments parents voluntarily submitted in Better Parenting. “Not yet observed” combines uncertain and not-yet responses; unanswered items are excluded from the denominator.
- Whole-child development Skills are reused directly from the 31 published Sub-Domain Growth Paths. A Skill is not repeated in the further-development section when the same Skill already anchors a Milestone at this age.
- Activity cards use an A-first, B-fallback policy. The English site renders a card only when the corresponding English Activity is release-ready; card title and introduction come from the canonical Activity translation rather than this page.
- This page supports understanding, observation, and everyday interaction. It does not replace developmental screening, medical advice, or diagnosis. If your child loses a skill they previously used, or if you remain concerned about development, contact your child’s pediatrician or another qualified healthcare professional.
- Better Parenting Content Team | Updated September 2, 2026 | Human language review pending; publication permission is tracked separately.