Is my child on track for their age?

Per the AASM 2016 consensus, endorsed by the AAP, and counting naps: 12 to 16 hours from 4 to 12 months, 11 to 14 hours from 1 to 2 years, 10 to 13 hours from 3 to 5, 9 to 12 hours from 6 to 12, and 8 to 10 hours from 13 to 18. Under 4 months AASM gives no figure; the National Sleep Foundation suggests 14 to 17 hours.

Per the ADA eruption chart: lower central incisors at 6 to 10 months, upper central at 8 to 12, upper lateral at 9 to 13, lower lateral at 10 to 16, first molars at 13 to 19, canines at 16 to 22 and second molars at 25 to 33 months. That completes the set of 20 primary teeth.

Wide variation is normal, and a first tooth anywhere from 4 to 15 months is still within range. No teeth at all by 18 months is worth a dental evaluation. Late eruption on its own, with normal growth otherwise, is usually just family timing.

The AAP asks for no screen media other than video chat before 18 months, high-quality content watched together from 18 to 24 months, no more than one hour a day of quality programming from 2 to 5, and from age 6 consistent limits rather than a fixed cap — with sleep, physical activity and homework protected first.

Caring for Our Children, the AAP/APHA/NRC national standard, sets 1 adult per 3 infants with a group cap of 6, 1 per 4 toddlers with a group of 8, 1 per 7 three-year-olds, 1 per 8 from age 4, and 1 per 10 to 12 for school age. State licensing rules can be less strict than this standard — check yours.

This hub estimates it from foot length: roughly three times the length in inches minus 9.5 gives the US children's size. Always measure standing, in the afternoon when the foot is largest, and add about half an inch of growth room before buying. Toddlers move up about half a size every two to three months.

There is no official guidance, which is why the amount here is an editable field. The most common US convention is about $1 per week per year of age, so $8 a week at age 8. What matters more than the number is that it is predictable and that some of it has to be saved.

As a rough sequence: body safety around 3, where babies come from around 4, death and loss around 4 to 5 in concrete terms, money around 5, online safety around 6, puberty around 8 to 9 — before it starts, not during — drugs and alcohol around 9, and consent and relationships by 11. These are developmental conventions, not a standard: follow the child's own questions.

Not by itself. The ranges are population guidance with a wide normal spread. Look at daytime function instead: a child who wakes on their own, is alert through the morning and does not crash in the afternoon is probably getting enough. Persistent difficulty waking, or falling asleep in the car every day, is the signal to act on.

Usually starting around age 6 with the lower central incisors, in roughly the same order they came in, and finishing between 11 and 12. The first permanent molars come in behind the baby teeth around age 6 without anything falling out first, which is why they are often missed.

Yes. Every figure here is total sleep across 24 hours, naps included. That is why dropping the nap between ages 3 and 5 does not lower the requirement — it just means bedtime has to move earlier to keep the same total.