Jean Piaget developed a Developmental-Cognitive of Learning. Please briefly explain the key concepts of his theory in terms of assimilation, accommodation, equilibration, play, and imitation. He was has been most well-known for his stage theory. Please briefly discuss each of the 4 major stages that occur in children as they develop (Sensorimotor, Preoperational, Concrete Operations, and Formal Operations). As you explain his stages, please discuss the concepts by using real-world examples.