Final answer:
Object permanence is a cognitive milestone achieved in infancy, not an emotional advancement of the elementary school years, which include body modesty and theory of mind development.
Step-by-step explanation:
The question pertains to the advancements in children's understanding of emotions during elementary school years. At this stage, children become more aware of their self-esteem, which can be influenced significantly by their peer relations. It's also a time when body modesty and desires for privacy emerge. The advancement that is NOT true is the attainment of object permanence. This is because object permanence is a cognitive milestone typically reached in infancy, as described by Piaget, and not an emotional advancement developed during the elementary school years. To foster a child's emotional development during this phase, parents and teachers should encourage peer interactions that are positive and model how to deal with emotions effectively. The theory of mind (TOM) is also crucial as it is the capacity to understand that others have separate thoughts and emotions, and it develops earlier than the elementary school years.