The mental and physical actions that are involved in knowing and understanding are known as schemas. These are categories of information or knowledge that help an individual to understand and interpret the world.
According to theorist P, both the category of knowledge and the process by which a person obtains that knowledge is included in a schema. As a person was and gains new experiences, new information gets added and is used to add, modify, or change their schemas that have previously been existing. For example, a kid might have a schema about a certain type of animal, like a cat. If the experiences that the child had have always been with a small furry cat, they might consider cats to be only small, having four legs and furry. Assuming the child meets a big cat who is not so furry, their perception about cats changes and they take in the new information by modifying the already existing schemas.
Schema is a cognitive framework according to which information is organized and interpreted.
Other categories that can be formed are: