Final answer:
The aggressive child should apologize and acknowledge the pain caused to help repair the relationship and promote prosocial behavior.
Step-by-step explanation:
When a child hurts another child, physically or emotionally, it is important for the aggressive child to immediately take responsibility for their actions. The child should say an earnest apology that acknowledges the hurt they've caused and expresses regret for their actions. For example, they might say, "I'm sorry for hitting you. I shouldn't have done that and I didn't mean to hurt you." This shows that they understand the impact of their behavior and are willing to work towards mending the relationship with the victim. Moreover, having a constructive conversation on why the incident occurred and how to avoid future aggression is beneficial. This dialogue can lead to better prosocial behavior and help both parties move forward.