Final answer:
Piaget referred to internalized representations of reality as 'schemata', which are mental models that help in categorizing and interpreting information.
Step-by-step explanation:
According to Jean Piaget, internalized representations of reality are called schemata. Schemata are mental models that individuals use to categorize and interpret information. Piaget stated that children develop schemata to comprehend their world, gradually adjusting these schemata through two processes: assimilation, where new information is integrated into existing schemata, and accommodation, where schemata are modified in response to new information. As children mature into adulthood, they build complex schemata for nearly all aspects of their lives.