Once upon a time, there was a young student named Jack. One sunny day, he climbed a tall tree in the park. But, oh no! Jack slipped and fell down, hurting his arm. It broke! He had to go to the hospital. The doctor said, "Jack, you need to rest and let your arm heal." Jack felt sad because he couldn't go to school. For one whole week, he stayed home, wearing a cast. His friends missed him, and they sent him drawings and cards. Finally, his arm got better, and Jack returned to school, happy to see everyone again.