During which developmental stage do students benefit from manipulating objects according to Piaget?

Students benefit from manipulating objects during the concrete operational phase, which is an essential aspect of this stage in Piaget's theory of cognitive development. In this phase, which typically occurs between the ages of 7 and 11, children develop logical thinking and gain a better understanding of the concept of conservation—recognizing that quantity doesn't change even when its shape does. By handling and manipulating physical objects, students can learn mathematical concepts, spatial relationships, and scientific principles more effectively.

This hands-on approach allows children to move from preoperational thinking, characterized by egocentricity and magical thinking, to a more rational and organized method of problem-solving. Since manipulation of objects aids in understanding these concepts concretely, it reinforces the cognitive gains made during this critical period of development.