For each of the following questions, identity which of Piaget's stages best fits the behavior being described:

In responding, please use the following:

Sensorimotor, Preoperational, Concrete Operations, Formal Operations

3. When I pour equal amounts of water from two of the same glasses into one glass that is taller and narrower and another glass that is shorter and wider, the child mistakenly thinks the taller glass has more water. When asked why they believe this they said, "because this one is UP (the taller one) and this one is DOWN (the shorter one)."