Before Carl came, mathematics was the most boring subject. It's very interesting now. The children will listen to Carl and correct his mistakes. They all want to be the first person to find the mistake, and then try to find the best way to explain the problem.

But little Lewis was sure that Carl was sad and wanted to talk to him. So one day, he decided to follow Carl after school. Lewis must have seen Carl cry. On his way home, Carl walked for a few minutes to a park. He is waiting for someone to see him. . . It's a new teacher!

They walked away hand in hand, and Lewis heard them discussing mathematics. Stupid Carl knew everything better than anyone else in the class.

(Do the task, put your hands together, hope to adopt)