What are the childrens nouns stages?

i have to make a project for the class "Child Development" for High School and i don't know the stages of children's development..
i know two;
conceived - birth: prenatal stage
birth - 2 weeks: neonatal stage

i want the rest, help please.
look for information from Mary Sheridan - she does and excellent book that is 30 years old but still relevant for adjectives child care courses.

She plots the ages and stages of development up until a child is around 5 - her book even cover children with delayed research or learning difficulties so she would be your first and best port of call
lol i do childcare aswell buh i didnt come at that stage aswell. what level you doin?

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