Final answer:
Children start to recognize themselves around 18 months old with clear evidence of recognition by touching their own noses when seeing a spot on their face in a mirror. By 24-36 months, they can identify themselves in photos, and increased social behavior and self-awareness develop from 2 to 6 years old as they learn to play with others, identify group roles, and recognize personal traits.
Step-by-step explanation:
Self-recognition in children begins at different stages as they grow and develop. A pivotal moment occurs around 18 months old when children start recognizing themselves, as evidenced by their reaction to a red dot of paint on their noses when placed in front of a mirror. This act of self-recognition, known as the mirror test, is a sign that they are beginning to develop a self-concept. Between the ages of 24-36 months, children can name or point to themselves in pictures, further indicating awareness of their identity. By the age of 3, children can speak in simple sentences and ask questions, revealing their ability to identify their preferences and display a growing sense of self.
By 4 years old, children's social behavior flourishes as they partake in cooperative play and begin to understand sharing and display autonomy. They recognize themselves as separate entities capable of initiating tasks on their own. Group membership becomes an aspect of self-identification; for instance, a 6-year-old child might state their identity in terms of their grade level or social group. This period also allows for the recognition of personal abilities and traits in comparison to others, contributing to their self-concept.