Toddlers (2-3 years of age)
Your four-year-old isn't a toddler anymore, but a full-fledged preschooler. Like many parents, you may be wondering what developmental milestones await you and your four-year-old, particularly as you anticipate kindergarten in the not-so-distant future.
For infants, toddlers and preschoolers (birth to 5 years) | Australian Government Department of Health and Aged Care.
Preschooler (3-5 years old) | CDC.
What Is a 5-Year-Old Called? The Center for Disease Control defines a 5-year-old as a preschooler. This designation comes after the toddler ages of 1-3 and before the middle childhood ages of 6-8.
Middle Childhood (6-8 years of age)
Kids between 8 and 12 are called “tweens” because they are in between children and teenagers.
Newborn/baby: 0-12 months old. Toddler: 1-3 years. Preschooler: 3-5 years. School-aged: 5-12 years.
There's no official definition of the upper limit of toddlerhood; however, most people consider the end of the toddler age to be around the time a child is ready to transition into preschool, around 4-years-old.
Toddlers (1-2 years of age)
Toddlers (2-3 years of age)
Some age-related development periods and examples of defined intervals include: newborn (ages 0–4 weeks); infant (ages 1 month–1 year); toddler (ages 1–2 years); preschooler (ages 2–6 years); school-aged child (ages 6–12 years); adolescent (ages 12–18 years).
When asked, “How old is a toddler?” experts agree with the AAP definition: Officially, the toddler age range is between 12 and 36 months.
5 months – 1 1/2 years (Baby) 1 1/2 to 3 years (Toddler) 3–5 years (Preschooler) 6- 9 years (Child)
At 4 years, preschoolers know hundreds of words and can use 5-6 words or more in sentences. You can understand what your child is saying all the time. By 5 years, preschoolers can speak more clearly and will know, understand and use even more words, often in more complex sentences of up to 9 words.
Your 4-year-old will seem much more independent and able than they used to, but they are still just a little kid and will need adult supervision and guidance for most of their activities.
The United Nations Convention on the Rights of the Child defines child as, "A human being below the age of 18 years unless under the law applicable to the child, majority is attained earlier.” This is ratified by 192 of 194 member countries.
These stages include infancy, early childhood, middle childhood, adolescence, early adulthood, middle adulthood and old age.
This is the age where they might be in preschool or in kindergarten. As they give up naps, they may go to bed at night earlier than they did as toddlers. Check out our guide about Healthy Sleep for Children for more info.
What defines a big kid? A big kid is a child between kindergarten and second grade (ages 5 to 8), with big kids being considered school age around ages 5 to 6. These years are filled with new milestones, new interests, new social needs, and new academic developments.
The "tween years" can be challenging for both children and their parents. Young adolescents are continuing to explore their community and world and beginning to develop unique identities separate from their parents.
Adulthood is commonly thought of as beginning at age 20 or 21 years. Middle age, commencing at about 40 years, is followed by old age at about 60 years.
There are different words for people in each decade of age: A person between 10 and 19 years old is called a denarian. A person between 20 and 29 is called a vicenarian.
A tween is a child between the ages of 9 and 12. A tween is no longer a little child, but not quite a teenager. They are in between the two age groups and their behavior and emotions reflect that. Approaching puberty: Big changes are going to start or have already begun to happen to a tween's body.
Around 9 to 12 years old, your child will enter their “tween” years. Also called pre-teenagers, tweens are at the age where they're leaving childhood and entering adolescence. With the onset of puberty during this stage, your child will experience a great number of changes and perhaps you as well as a parent.