What was the result of Humphrey changing the Itos' clock?

At the end of the first day of jobs, how was Humphrey feeling about the changes he had made? How was the class looking?

Why did Miss Becker come into Mrs. Brisbane's classroom? What did Humphrey think of her? Why?

What problem were the two students named Paul having while designing the bulletin board? What design did they decide on? Describe what it looked like.

Why was Humphrey sad at the end of chapter fourteen. What did he tell Og?