When a child understands that events in the world take place and are not under their own control. They should also understand that these events do not require their involvement. Decentration is a part of the tertiary circular reactions.

When a child applies old schemata in a new setting with intention, imitation, and anticipation in order to reach a goal.

The problems that occur when a child has difficulty focusing on the transformation from state to state when it comes to mass, length, number, volume, and area. The age at which children can comprehend conservation varies. For conservation of number, children can generally achieve this by age six. They can

A monologue that takes place in a group setting where a child speaks without connection to what another has said. A collective monologue is performed for the same reasons as a simple monologue despite the change in location and social setting.

The mental capacity and behaviors that allow people to understand society and the world around them. It can include many different processes, but it is essential to the ability to record memories symbolically in the brain using objects and events.

The concept that people and events can directly correlate with changes.

A theory that memory is hindered by a child’s inability to retrieve information as opposed to a limited amount of memory storage.

Development measured by monitoring and observing independent problem-solving.

Names for objects that are associated with actions. Action terms are typically used in early language to represent things the child considers extremely important.

An involuntary muscle contraction that is sustained for a period of time, resulting in stiffening of the body or twisting the body into unnatural positions.