What age is a child, and what age does a child mean?

0-12 years old.

Infancy: 1 to 12 months of birth. Among them, the umbilical cord clamping to 28 days after birth is called the neonatal period.

6 months 12 months old babies are called older babies. Early childhood: 1-3 years old.

Preschool: After the age of 3 to before entering elementary school at the age of 6 or 7. School Age:

6 years old 12 years old. Adolescence Adolescence: 13 years old 18 years old.

A preschool child is a child who has not reached school age. At present, the school age for children in China is 6 years old, and children before the age of 0 6 are preschool children.

Toddlers: 1-6 years old.

Children: 7-14 years old.

Youth: 13-19 years old.

Children: under 18 years old.

Youth: 20-39 years old.

Middle-aged: 40-59 years old.

Elderly: 60 years old or older.

In China, it is divided into four age groups according to age, namely youth group (under 29 years old), young and middle-aged group (30-39 years old), middle-aged group (40-49 years old) and middle-aged and elderly group (over 50 years old).

Fetus. Infants, toddlers 3-6, teenagers 7-14, youth 15-35, middle-aged 36-60, and elderly 61-, this is the general division.

Generally speaking, the ancients divided the time in this way: childhood is under 12 years old, and over 12 years old is called the age of juvenile total horns, 20-year-old weak crown, that is, youth, and some people think that after 18, they stand for young people 30, and they enter middle age, 40 is not confused, called the prime of life, 50 and know the destiny of heaven, of course, it is considered old age There are 60 sixties, 70 ancient rare. 80, 90 years old, 100 years old.

According to developmental psychology: infant period: 0-1 years old, infancy, 1-2 years old, early childhood 2-3 years old, preschool age, early school age, adolescence, youth - 30 years old, middle age, 30-50 years old, old age after 50 years old.

Internationally, the population is usually grouped unequally according to 0 14 years old, 15 64 years old, and over 65 years old, which are called juvenile population, prime population, and elderly population, and the juvenile population coefficient is calculated based on the total population, the middle-age population coefficient and the elderly population coefficient, and the dependency coefficient is calculated on the basis of the middle-aged population, that is, the dependency coefficient = (juvenile population + elderly population) prime-age population, and the population in the age group of 15 and 24 years old is also called the youth population in the world.

Legally, a child usually refers to a citizen under the age of 18, while medically, a child refers to a child under the age of 14.

For children under the age of 14, according to different age characteristics, it is divided into neonatal period, infant period, early childhood, preschool age, school age and adolescence, each period has different concerns. In the neonatal period, we should pay attention to the feeding and growth and development, and in the early childhood, we should pay attention to the situation of diseases, and we need to carry out corresponding vaccinations to improve physical fitness.

After entering puberty, it is necessary to pay attention to the psychological and physical development, and pay attention to whether you have mental illness and whether you are mentally healthy. In addition, children between the ages of 14 and 18 can still go to a children's specialist hospital if they have problems with puberty.

Children's physical fitness

Enhance children's physical fitness. Promote sunshine sports, and open up physical education and health classes. Ensure that children have at least 1 hour of moderate and vigorous exercise every day to cultivate good exercise habits in children.

Fully implement the "National Student Physical Health Standards", and improve the student health examination and physical fitness monitoring system.

Encourage public sports venues and facilities to be open to surrounding schools and children free of charge or at a discounted rate, implement the policy that school sports venues and facilities are open to students after school and holidays, and support schools in purchasing after-school sports services from sports social organizations. and further increase the construction of supporting public infrastructure such as outdoor sports, fitness and leisure. Arrange children's work and rest reasonably, and ensure that the daily sleep time reaches 10 hours for primary school students, 9 hours for junior high school students, and 8 hours for high school students.

The International Convention on the Rights of the Child defines a child as any person under the age of 18. International Children's Day is celebrated on June 1 every year. China has made a clear age division of infants, toddlers and children, and should be infants under the age of one, children over the age of one but under the age of six, and children over the age of six but under the age of fourteen.

Specifically, children can be subdivided into the following stages, which are mainly based on the different growth and development characteristics of children:

1. Infancy: less than 1 year old belongs to the category of infants.

2. Children: 1-3 years old is the category of children.

3. Pre-school age: The age of the child is between 3-7 years old, and they all belong to the pre-school age.

4. School-age period: The school-age period is from the child's age of 7 years old to pre-adolescence.

5. Adolescence: Adolescence begins at the age of 10 and lasts until the age of 18.

The most effective age groups for children's education are as follows:

The first 6 months of life is the critical age for babies to learn to chew and feed dry food, and after the first month of dry food, they can reach out and grasp things, after which they may refuse to chew and spit food out of their mouths. 9 months to 1 year old after birth is the beginning of distinguishing how much and how big it is.

2 3 years old is the first critical age for learning spoken language and is also a critical age for counting development.

2 and a half years old 3 and a half years old is the key age to teach children to be well-behaved, and they should form good hygiene habits and the habit of abiding by the work and rest system.

Before the age of 4 is the key age for the visual development of the image of the pants.

4 to 5 years old is a critical period for the beginning of learning the written language.

Around the age of 5 is the critical age for mastering mathematical concepts, and it is also the second critical period for children's oral language development.

5 6 years old is a critical period for mastering language vocabulary.

6 The age of 12 is the first period of shaping the psychological development of children.

0 18 years old is a child.

According to the International Convention on the Rights of the Child, a child is defined as any person under the age of 18. (Article 1 of the Convention on the Rights of the Child: For the purposes of this Convention, a child means any person under the age of 18 years, unless, under the law applicable to him, the age of majority is less than 18 years. ）

The Convention on the Rights of the Child was ratified at the 23rd Session of the Standing Committee of the Seventh National People's Congress on 29 December 1991, and we have worked with people's organizations, international organizations, the press and individuals to transform the obligations under the Convention from a declaration of pure intent into a concrete action plan to improve the lives of all Chinese children.

The Convention on the Rights of the Child entered into force in China on 1 April 1992. The Convention on the Rights of the Child was adopted by the United Nations General Assembly on 20 November 1989. It is the most widely recognized international convention of all time.

The age of a child is broadly defined and should be considered a child from birth until the age of 18.

According to the characteristics of children's growth and development at different ages, the neonatal stage refers to the period from umbilical cord ligation to 28 days of birth; Infancy refers to before the age of one; Early childhood refers to between 1-3 years old, preschool refers to 6-7 years old before going to school, after the age of three are called pre-school age, school age refers to 6-7 years old to before puberty, adolescence is generally about 10 years old to puberty sexual maturity, generally to about 18 years old.