"Double Trouble" by Sergio Casales Despite being twin brothers, Martin and Mason couldn't be more different. Martin loved computers and building things, while Mason couldn't stand doing anything inside and loved playing outdoor sports. Martin clamored to watch action movies, while Mason grew angry if they didn't watch history documentaries. They fought about everything and their mother worried that they'd never get along. One day on the way home from school with the report cards, Martin and Mason both noticed that the other was unusually quiet. They realized that both of them had Ss in a subject - Martin in history and Mason in Math. They were both worries about what their parents would say. Before they got to their front door, they devised a plan. They would tutor each other in those subjects so that they both could improve. Within three weeks, both boys had brought up their grades, and they were closer than they'd ever been. I What are the theme of this story?