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Milestone
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Signs & concerns
Key Cognitive Milestones in Early Childhood
Cognitive milestones show how a child learns to think, remember and solve problems — from following a toy and object permanence in infancy to pretend play, puzzles and early counting by the preschool years. Ages are wide ranges, not deadlines; a pattern of several lagging skills, or a lost skill, is worth an early, reassuring check.
Read the answer AnswerKey communication milestones in early childhood
Early communication follows a clear sequence: cooing and smiling by 3 months, babbling and gestures by 9-12 months, first words around 12 months, two-word phrases by 24 months, and short sentences by 3 years. These are guides, not deadlines — steady progress matters most, and a gentle check helps if babble or gestures are absent by 12 months or words are lost.
Read the answer AnswerWhat are the key emotional milestones in early childhood?
Emotional milestones run from a newborn's first social smile, through stranger wariness and attachment in infancy, to tantrums, early empathy and naming feelings in the toddler and preschool years. They unfold as a flexible range, not fixed deadlines, and are driven most by warm, responsive everyday connection.
Read the answer AnswerKey motor milestones in early childhood
Motor milestones split into gross motor (head control, rolling, sitting, crawling, walking, running) and fine motor (grasping, pincer grip, stacking, scribbling). They follow a broad order with wide normal timing — celebrate steady progress, and seek a friendly check if a child falls well behind or loses a skill.
Read the answer AnswerKey Sensory Milestones in Early Childhood
Sensory milestones move from startling at sounds and fixing on faces in early infancy, to mouthing and exploring textures by the first year, to managing messy, noisy, busy play with comfort by the toddler and preschool years. These are guides, not deadlines — steady progress matters most, and a gentle check helps if everyday sounds, textures or movement cause lasting distress.
Read the answer AnswerWhat are the key social milestones in early childhood?
Social milestones progress from the first social smile (~2 months) to cooperative pretend play (by 3–4 years), passing through laughing, peekaboo, waving, pointing to share, parallel play and turn-taking. They unfold across a broad healthy range, so the overall pattern of warm connection matters more than exact dates. A gentle developmental check helps if back-and-forth connection seems absent across settings or if skills are lost.
Read the answer AnswerWhat cognitive milestones should a 12-to-18-month-old reach?
Between 12 and 18 months, most toddlers explore objects with purpose, find hidden toys, follow simple one-step requests, recognise named people and objects, imitate actions, and begin simple pretend play. Children vary widely, so steady progress and no loss of skills matter more than exact timing.
Read the answer AnswerWhat cognitive milestones should a 18-to-24-month-old reach?
By 18–24 months most toddlers begin pretend play, copy adults, find hidden objects, sort and match simple things, follow one-step instructions and explore cause and effect. These are guideposts, not a strict checklist — children vary. If several skills are clearly behind, or any are lost, a gentle developmental check brings clarity.
Read the answer AnswerWhat cognitive milestones should a 2-year-old reach?
By two, most toddlers begin to pretend, solve simple problems, sort shapes and colours, follow two-step instructions, and remember where things belong. These are flexible guideposts, not a pass-fail test — children reach them across a wide age range. Consider a gentle check if there's no pretend play, no response to simple instructions, any loss of skills, or a persistent parental concern.
Read the answer AnswerWhat cognitive milestones should a 3-to-6-month-old reach?
From 3 to 6 months, cognitive milestones appear as curiosity and connection: tracking moving objects with the eyes, recognising familiar faces and voices, mouthing and grasping to explore, and showing delight at cause-and-effect like shaking a rattle. These are flexible guideposts, not deadlines.
Read the answer AnswerWhat cognitive milestones should a 3-year-old reach?
Around age 3, most children complete simple puzzles, sort by shape and colour, grasp counting to two or three, follow two-step instructions, recall parts of stories and enjoy rich pretend play. These are guides, not tests — steady month-on-month growth matters most, and a gentle developmental check helps if pretend play, instructions or interest in toys seem very limited.
Read the answer AnswerWhat cognitive milestones should a 4-year-old reach?
Most four-year-olds count a few objects, name some colours, recall parts of a story, follow two- or three-step instructions, and enjoy rich pretend play. Milestones are a guide across the whole year, not a pass-or-fail test. If several skills seem well behind, a gentle developmental check is a kind next step.
Read the answer AnswerWhat cognitive milestones should a 5-year-old reach?
Most 5-year-olds count to ten or more, name colours and some letters, follow two- to three-step instructions, and create detailed pretend play. These are signposts, not a strict checklist — children reach them at their own pace, and steady year-on-year progress matters most.
Read the answer AnswerWhat cognitive milestones should a 6-to-9-month-old reach?
Between 6 and 9 months, most babies begin to understand object permanence, explore toys with curiosity, recognise familiar faces and names, and grasp simple cause and effect. These gains emerge gradually across a wide, healthy range — a check helps only if your baby makes no sounds back, shows no interest in toys, doesn't recognise familiar people by 9 months, or loses a skill.
Read the answer AnswerWhat cognitive milestones should a 6-year-old reach?
Most 6-year-olds count past 20, begin simple addition, recognise letters and read simple words, follow two-to-three-step instructions, sort objects, and tell a sequenced story. These are typical ranges, not a fixed checklist; a gentle developmental check brings clarity if several skills feel far behind.
Read the answer AnswerWhat cognitive milestones should a 9-to-12-month-old reach?
Between 9 and 12 months most babies begin to grasp object permanence (searching for hidden toys), explore objects by shaking and dropping, imitate gestures like waving, respond to their name, and understand simple words. These are guides, not deadlines — steady progress matters most, and a friendly check helps if a baby isn't searching for hidden objects or responding to their name by 12 months.
Read the answer AnswerWhat cognitive milestones should a doctor check at routine visits?
At routine visits track cognition as a trajectory: object permanence and means-end problem-solving in infancy, symbolic play through the second year, and reasoning, attention and pre-academic skills in pre-school years. Use surveillance every visit plus validated screens at 9, 18 and 30 months, escalating on any skill loss or persistent parental concern.
Read the answer AnswerCognitive milestones for frontline routine visits
During routine visits, frontline workers should check age-based cognitive markers — object permanence, cause-and-effect play, pointing to share, following instructions, pretend play and memory — alongside parent concern. These are watch-and-monitor checks; any persistent gap or lost skill is a reason to route the child for a developmental check, never a diagnosis.
Read the answer AnswerWhat cognitive milestones should a newborn reach?
A newborn's cognitive milestones are early attention, memory and learning — fixing on faces, following slow movement with the eyes, quietening to a familiar voice, and the first social smile by around 6–8 weeks. These are gradual, individual, and signs to encourage rather than a test to pass; mention any concern at your routine check.
Read the answer AnswerCognitive milestones for your 12-to-18-month-old
Between 12 and 18 months most toddlers begin finding hidden toys, imitating everyday actions, using objects correctly, following simple instructions and starting basic pretend play. These are emerging skills that grow week by week — a band of typical progress, not a strict checklist. If several lag by 18 months, a gentle developmental check is wise.
Read the answer AnswerWhat Cognitive milestones should my 18-to-24-month-old have reached?
Between 18 and 24 months most toddlers begin pretend play, follow one-step instructions, point to name pictures or body parts, and solve simple problems by trial and error. These are guides, not deadlines — a single missing skill is rarely a worry, but persistent gaps deserve a friendly developmental check.
Read the answer AnswerCognitive milestones for your 2-year-old
By age two, most toddlers find hidden toys, sort shapes, stack blocks, follow simple two-step instructions, name familiar pictures and begin pretend play — early signs of growing memory, attention and problem-solving. These are gentle guideposts, not a pass-or-fail test.
Read the answer AnswerCognitive milestones for your 3-to-6-month-old
Between 3 and 6 months, cognitive milestones appear as curiosity: recognising familiar faces, following moving objects, exploring toys by reaching and mouthing, and expecting a response to coos and smiles. Babies develop at different paces, so a few weeks' variation is usually normal — a developmental check brings reassurance if you have concerns.
Read the answer AnswerWhat cognitive milestones should my 3-year-old have reached?
By age 3, most children complete simple puzzles, sort by colour or shape, follow two-step instructions, name a few colours and enjoy pretend play. These cognitive milestones emerge across a healthy range — a gentle developmental check is wise only if pretend play, instruction-following or problem-solving interest seem absent by 3–3½.
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