Examples of shield in a Sentence. 1  celebrities who are shielded by a cluster of bodyguards whenever they appear in public. 2  she shielded her eyes from the sun with her hand.
Cognitive development is a part of Psychology which deals with the processes involving a childâs thinking. It studies how children process and gain information at a particular age and how learning mechanisms change and evolve over time.
By Kendra Cherry. Updated February 01, 2016. Jean Piaget's theory of cognitive development suggests that children move through four different stages of mental development. His theory focuses not only on understanding how children acquire knowledge, but also on understanding the nature of intelligence.