(Do activity then read, Wise Men and the Elephant)
Child 1: I see Yellow.
Child 2: No it's pink not Yellow.
Adult: He says it's pink not yellow?
Egg the children on to disagree and insist they are correct until they are able to run with the dialog by themselves.
When you are in a disagreement with someone, try to understand their side of the situation. Just insisting you are right will get you nowhere! Each person sees situations differently, be open to understanding the other side.
The Wise Men and the Elephant, by James Baldwin