Answer:
Accommodation.
Explanation:
Jean Piaget explained the theory of cognitive development by explaining the concept of schema, assimilation, and accommodation. The process of accommodation refers to the modification of new ideas so that they would better fit in with the prior knowledge. As per the question, the child understands that all birds can fly but at the same time he also adapted that though penguin does not fly it is a bird therefore it explains the accommodation process.
