Here we will discuss the first three. Piaget believed intellectual development is a continual process of organization and reorganization of structure. Sensorimotor Period 1. Primary circular reactions 1-4 months 3. First there are some terms you should know in order to understand Piaget's theories of cognitive development.
Cognitive development consists of a succession of changes which are structural.
The structural units are called schemata which is the plural of schema. This is the 'framework' onto which what a child learns fits. It continually changes as new information is collected as the child learns. Assimilation - Occurs when a child utilizes something from its environment and incorporates it. An example is a tree.