The children in Class B are having a math class. Jack looks bored. He doesn't like math. Suddenly, Jack became excited. A frog jumped on his desk from the window. This is a blue frog with big red eyes. Jack tried to catch it, but it jumped away. It jumped on Ann's shoulder. Ann screamed with fear. The frog jumped up again. It jumped on Paul's lap. Frogs are cold and wet. Paul doesn't like them. He jumped up, and so did the frog. It jumped and jumped, onto Miss Porter's podium! All the children are dancing and laughing, and no one is listening to Miss Porter's class. Miss Potter is angry. "Sit down and be quiet!" She shouted. The frog is afraid. It jumped out of the door with a big jump.