A primary teacher notices that an 8-year-old student understands that pouring juice from a short, wide glass into a tall, narrow glass does not change the amount of liquid. According to Jean Piaget's theory, which cognitive milestone does this demonstrate?
- AObject permanence (permanencia del objeto)
- BEgocentrism (egocentrismo infantil)
- CConservation (noción de conservación)
- DHypothetical-deductive reasoning