Answer:
According to Jean Piaget, Cognitive Development is taking place.
Step-by-step explanation:
Cognition has to do with the way a person thinks and the memory processes that are in play.
Cognitive Development is a field of neuroscience that studies how children think, behave and figure things out.
Jean Piaget was a Swiss psychologist who was responsible for creating and studying how children evolve to think in a logical way.
Tosetti is having problems with her kindergarten students because they are unwilling to share, they do not understand how another student feels, etc and according to Jean Piaget, cognitive development is taking place.