KidManual

From birth to the first day of school

Sixteen stages. Months at the start, half-years later on, because that is how children actually change.

Sex

Needed for WHO growth charts, which differ by sex

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  1. 01M

    0-1 month

    Newborn

    Feed, sleep, survive. That is the whole job.

    Nothing needs to be taught this month. Your baby is adjusting to life outside the womb and you are adjusting to a new identity. Whether things are going well comes down to three things: enough milk in, enough output, and weight heading back up.

    How much sleep · 14-17 hours a day2 vaccines8 milestones
  2. 12M

    1-2 months

    First smile

    The first real smile shows up in this window

    Your baby starts being present: looking at you, turning towards your voice. This is also peak crying, often called the colic period, which builds to around six weeks and then eases on its own.

    How much sleep · 14-17 hours a day1 vaccines8 milestones
  3. 24M

    2-4 months

    Smiling and grabbing

    Reflexes give way to intention

    These two months are a genuine shift. Hands stop being reflexive fists and start reaching on purpose. Smiles stop being accidental and start being answers. Many families also meet the four-month sleep change here.

    How much sleep · 12-16 hours a day5 vaccines12 milestones
  4. 46M

    4-6 months

    Getting ready to eat

    Two months of preparing for the first real meal

    Sitting, grabbing, and putting everything in the mouth are all physical preparation for solid food. Your preparation is deciding what the first bite will be, and how you will know they are actually ready.

    How much sleep · 12-16 hours a day3 vaccines12 milestones
  5. 68M

    6-8 months

    Starting solids

    The first real meal, and the mess that comes with it

    Solids begin. The goal for these two months is not how much goes in, but getting used to spoons, flavours and textures. Milk is still the main meal; food is practice.

    How much sleep · 12-16 hours a day3 vaccines12 milestones
  6. 810M

    8-10 months

    Crawling and pinching

    They can move now. Your home is no longer safe.

    Mobility arrives, and with it both a wider world and a wider set of hazards. Fingers get precise enough to pick up a single grain of rice, which means anything on the floor ends up in the mouth.

    How much sleep · 12-15 hours a day2 vaccines12 milestones
  7. 1012M

    10-12 months

    Almost walking

    First step, first word, first birthday

    Three milestones crowd together at the one-year mark: walking, a first meaningful word, and a diet that shifts from milk-led to food-led. Do not rush the walking — the normal range runs to 18 months.

    How much sleep · 11-14 hours a day0 vaccines12 milestones
  8. 1215M

    12-15 months

    Walking

    They can walk now, and they have learned the word no

    Independence arrives alongside mobility. They have opinions and no way to express them, and that gap is where the first wave of meltdowns comes from.

    How much sleep · 11-14 hours a day2 vaccines12 milestones
  9. 1518M

    15-18 months

    Before the word burst

    They understand far more than they can say

    Comprehension runs well ahead of speech, and that gap explains most of the frustration at this age. A vocabulary explosion is close, usually between 18 and 24 months, taking them from dozens of words to hundreds.

    How much sleep · 11-14 hours a day0 vaccines12 milestones
  10. 1824M

    18-24 months

    Word explosion

    Six months that take them from dozens of words to hundreds

    The turning point for language. It is also the start of the terrible twos, because the gap between what they want and what they can control is at its widest. These are the same phenomenon.

    How much sleep · 11-14 hours a day3 vaccines13 milestones
  11. 2430M

    2 to 2.5 years

    I do it myself

    Everything must be done alone, and nothing can be done well

    Peak autonomy. They want to put on their own shoes, pour their own water, press the lift button, and fall apart when they cannot. What helps most here is not teaching but leaving enough time.

    How much sleep · 11-14 hours a day1 vaccines14 milestones
  12. 3036M

    2.5 to 3 years

    Reasoning starts

    Words start replacing meltdowns

    Language finally catches up with intent and the frequency of collapse drops noticeably. They can say "I do not like it" instead of lying on the floor. These six months are also the run-up to preschool.

    How much sleep · 10-13 hours a day0 vaccines16 milestones
  13. 3642M

    3 to 3.5 years

    Starting preschool

    The first world that does not contain you

    Most children start preschool here. Social rules, a group schedule and self-care all arrive at once, and a visible period of regression — clingier, more tearful — is normal.

    How much sleep · 10-13 hours a day1 vaccines13 milestones
  14. 4248M

    3.5 to 4 years

    Rules and imagination

    They can tell stories, and also make them up

    Imagination is in full flower while rules and consequences start to make sense. Most "lying" at this age is not a moral failing but a blurred line between imagining and remembering.

    How much sleep · 10-13 hours a day0 vaccines16 milestones
  15. 4860M

    4 to 5 years

    Friends and self-control

    They start genuinely caring what other children think

    Peer relationships become the centre of life and emotional regulation improves markedly. This is also where school readiness starts, and attention, self-control and expression matter far more than how many characters they can read.

    How much sleep · 10-13 hours a day2 vaccines16 milestones
  16. 6072M

    5 to 6 years

    The last preschool year

    Most of what prepares them for school is not in a book

    The final year before school. Self-control, attention span and abstract thinking are all developing fast. The best investment this year is habits and self-management, not getting ahead academically.

    How much sleep · 9-12 hours a day0 vaccines16 milestones

This is general reference material. It does not replace advice from your doctor.