Apreschool teacher's class gets angry when she pours identical cartons of juice into different shaped glasses. according to piaget's theory, in which way should the teacher best react to the class?

The teacher should buy the same-sized glasses, as children at this age can't understand conservation.

Explanation:

The understanding of conservation is the ability of a person to recognize that the amount of a substance does not depend on its content despite being able to adjust to various containers, that is if we have 1/2 liter of juice regardless of size or Container form the amount of juice will remain 1/2 liter.

However, the recognition of this implies a logical thought that is not yet developed in preschool children, it develops between 7 and 11 years, this according to the theory developed by the psychologist Jean Piaget.

I hope this information can help you.