When I was in Grade 5, I had a fight with a boy named Tony in my class. I have forgotten what the fight was about, but I have never forgotten the 1 I learned that day. I thought that I was right and he was wrong—and Tony just thought that I was wrong and he was right. The teacher, Mrs. Green, decided to teach us a very2 lesson. Mrs. Green asked us to stand on each side of her desk. In the middle of her desk was a large, round object. I could 3 see that it was black. She asked Tony what 4 the object was. "White ", Tony answered. I couldn't 5 Tony said the object was white, when it was black! Another fight started 6 us, this time about the color of the object. The teacher told me to go and stand where Tony was standing and told him to come and stand where I had been. 7 changed places, and now she asked me what the color of the object was. I had to answer, "8 . " It was an object with9 differently colored sides. From Tony's side it was white, 10 from my side it was black.