Mark was upset because he only got half a sandwich while his older sister got two halves of a sandwich. After his mother cut his half sandwich into two pieces, Mark was perfectly happy. Mark is probably in the _____ stage of cognitive development.
A)sensorimotor
B)preoperational
C)concrete operational
D)formal operational

Question

Quizplus · Accepted Answer

Mark is likely in the preoperational stage of cognitive development, which occurs roughly between the ages of 2 and 7. Children in this stage often struggle with understanding the concept of conservation—the idea that quantity remains the same despite changes in shape or appearance. Mark's happiness after his half sandwich was cut into two pieces, making him think he had more, illustrates this lack of understanding.

Mark Was Upset Because He Only Got Half a Sandwich