What is Cognitive Development?
Cognitive development means the development of the ability to think and reason.
Cognitive development means the development of the ability to think and reason.
Children ages 6 to 12 usually think in concrete ways (concrete operations). This can include things like how to combine, separate, order and transform objects and actions.
Adolescence marks the beginning development of more complex thinking processes (also called formal logical operations). This can include abstract thinking and the ability to form their own new ideas or questions. It can also include the ability to consider many points of view, compare or debate ideas or opinions, as well as consider the process of thinking.
During adolescence (between 12 and 18 years of age), the developing teenager gains the ability to think systematically about all logical relationships within a problem. The transition from concrete thinking to formal logical operations happens over time. Every teen progresses at their own rate in developing their ability to think in more complex ways. Each person develops their own view of the world. Some teens may be able to apply logical operations to schoolwork before they are able to apply them to personal problems. When emotional issues come up, they can add an additional level of complexity for an adolescent's cognitive reasoning. The ability to consider possibilities, emotions and facts may impact decision-making in positive or negative ways.
Some common features indicating growth from simpler to more complex cognitive development include:
During early adolescence, the use of more complex thinking is focused on personal decision-making in school and home environments. This can include:
The focus of middle adolescence often includes more philosophical and futuristic concerns. Examples may include:
During late adolescence, complex thinking processes are used to focus on less self-centered concepts and personal decision-making. Examples may include:
To help encourage positive and healthy cognitive development in teens:
Last Updated 06/2026
Learn more about our editorial policy.