Piaget (1953) described three kinds of intellectual structures: behavioural (or sensorimotor) schemata, symbolic schemata, and operational schemata.1. Behavioural schemata: organized patterns of behaviour that are used to represent and respond to objects and experiences.2.Symbolic schemata: internal mental symbols (such as images or verbal codes) that one uses to represent aspects of experience.3. Operational schemata: internal mental activity that one performs on objects of thought.According to Piaget, children use the process of assimilation and accommodation to create a schema or mental framework for how they perceive and/or interpret what they are experiencing. As a result, the early concepts of young children tend to be more global or general in nature