 Under these conditions, authentic forms of intellectual exchange become possible; each partner has the freedom to project his or her own thoughts, consider the positions of others, and defend his or her own point of view.In such circumstances, where children's thinking is not limited by a dominant influence, Piaget believed "the reconstruction of knowledge", or favorable conditions for the emergence of constructive solutions to problems, exists.Here the knowledge that emerges is open, flexible and regulated by the logic of argument rather than being determined by an external authority.