The children run and jump.  Do you like to run and jump?  Yes, I love to run and jump! 

The teacher is reading a book to the people.  How many people are sitting on the floor?  Nine people are sitting on the floor?  How many babies are there?  There is one baby.  How many teachers are there?  There is one teacher?  How many men are there?  There is one man.  Is the teacher a man or a woman?  The teacher is a woman.