According to Piaget, one of the milestones in the sensorimotor stage of development is understanding that: a. Schemas can be modified to incorporate new information.
b. Things maintain their volume, mass, and number, even when their form changes.
c. Things continue to exist even when they cannot be seen.
d. Other people have different perspectives.
The correct answer is: c. Things continue to exist even when they cannot be seen.
In Piaget’s sensorimotor stage, which lasts from birth to about 2 years old, one key milestone is the development of object permanence. This means that infants learn that objects exist even when they are out of sight, indicating an understanding that the world is not only defined by their immediate experiences. This understanding marks a significant cognitive development in early childhood.