Unit 27. My future job. What do you want to be when you grow up, Mark? I want to be a teacher. I think I would like to help children learn. Well, you know, teachers work very hard and they are not paid much money. I don't care about money. Teaching is an important job. What subject do you want to teach? I want to teach mathematics, like Ms. Kim. She makes learning fun. I didn't know that I would like math so much until I joined her class. Now, mathematics is my favorite subject. If you want to teach math, you'll have to work hard and learn it well. No problem. I got an A on the mathematics examination last week. With good teachers like Ms. Kim, learning is easy. I want to be a teacher, too. But I want to teach English, not math.