1. Intellectual development refers to the regular change of individual intelligence with age under the influence of social living conditions and education, and intellectual development is an important part of the whole psychological development.
2. The development of children's intelligence is a continuous process from birth to maturity in a certain order, and the order of development is certain. The development speed of each development stage is not exactly the same, and the development speed of different individuals is also different.
3. People's cognitive ability developed rapidly before 1 1 and 12 years old, and then developed slowly, reaching a peak around 20 years old, then maintaining this peak, and then slowly declining after 35 years old.
Factors affecting children's intelligence:
1, the influence of genetic factors has a certain correlation with the intelligence level of offspring and parents, which is determined by biology and genes.
2. Family environment has influence on intelligence. The lifestyle and social environment of the original ecological family may have a very important impact on the level of children's intellectual development.
3. School education has a certain influence on intelligence. School education affects children's intellectual development in many ways, among which the most obvious way is to impart knowledge, and knowledge can play a very important role in the development of children's intellectual level throughout their lives.
4. The influence of social practice on intelligence. People's ability is formed in social practice, and their intelligence level is the same, so the influence of social practice on intelligence is also very important.