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.
According to Piaget, the highest level of cognitive development is formal operational thought, which develops between 11 and 20 years old. However, many developmental psychologists disagree with Piaget, suggesting a fifth stage of cognitive development, known as the postformal stage.