Hello, everyone. Welcome back to another lesson with us here at EnglishPod. My name is Marco. And I'm Erica. And today we're going back to school. That's right.

  We're talking about my least（最少） favorite subject. That would be math. That's right. Okay（好）, so we're going to be talking about math. Now, I know that many of you, of course, know math. But do you know the operations（操作） in English?

  Many people find it hard to find the right words to talk about math in English. Right. So that's what we're going to be looking at today. And we'll also look at some names that you can call people who are really, really, really smart（聪明的）. So let's listen to our dialogue for the first time. And then we'll come back and look at those math words.

  All（ 全部） right, children, let's review（复习）. Tommy, pay attention（注意）. Sorry, Ms.Catholic（天主教徒）. Okay, Crystal（结晶）, now tell me. What's four plus 11? 15.

  Ms.Catholic always has Crystal. She's such a teacher's pet（爱畜）. Okay. And what about 56 minus（负号） 60? Negative four. Very good.

  12 times 12. Very good. Suck（吸） up. 144. Zero（零） divided（划分） by one. Zero.

  How did you know that? Okay, smarty pants（ 喘）, the square（平方） root（根） of two. Bet（打赌） you're not going to get that one. Do it all. 1.4, 1.4, 2, 1, 3, 5. All right, so that's one smart little girl, huh?

  Yeah, pretty smart, actually（实际上） smarter（聪明的） than me. All right, so let's take a look（看） at some of those words that the teacher used to ask her about certain（确实的） operations（操作） in language takeaway. Language takeaway（外卖食品）. Okay, so like（喜欢） we said, you guys（家伙） know how to do math and you know the words in your language, but maybe in English, it's a little bit（一点） harder to find the right word. So let's look at those now. Okay, so let's look at the first question that she asked.

  What's four plus 11? Four plus 11. Okay, plus. Plus. All right, so four plus 11, Erica is. Let me take a look at here.

  15. 15. Okay, so we are adding, right? Yes. So that's how you would say. Let's go with an easy one.

  Two plus two. Four. Four, right? Or five plus five. Ten. Ten, okay.

  You're really testing my skills. So that's how you would add numbers. Now, what about taking away numbers? Okay, so taking away or subtracting（减）. All right, let's test you again. In the dialogue, she said 56 minus 60.

  56 minus 60 equals（等于） negative four. Okay, minus. So that's negative, right? Minus. So, and of course, if you have 56 apples and you take away 60, you are left with negative four. Negative four.

  Well, actually, you're left with zero apples. Yeah, exactly（确切地）. Now（现在） that answer is also interesting. Negative four. Negative four. That means minus four, right?

  Four less（更少的） than zero（零）. Four less than zero. Very good. Negative four. Okay, so now for our next operation. 12 times 12.

  12 times 12. 12 times 12. Now, Marco, don't ask me the answer. All right. 12 times 12 equals 144. Now, that's multiplying（乘）.

  Right, or multiplication（[数] 乘法）. Multiplication. Okay, so this times part, it's very easy to remember because, for example, four times four. You can just say four, the number four, and you add it, right? Four times. Four times.

  Four plus four plus four plus four. Right, so times. Times（乘以）. Now, the opposite of times. All right, the opposite of multiplication is division（[数] 除法）. Division.

  Okay, so in our dialogue, the teacher said zero divided by one. Zero divided by one. Zero divided by one. Any number divided by zero is zero. All right, so let's give another example. 15 divided by three.

  All right, so 15 divided by three equals five. Five, exactly. So divided by. Divided by. Very good. So after division, the teacher was very impressed（ 被打动的）, and now she asked a very hard mathematical（数学的） operation（操作）, especially（特别） for a girl this age.

  The square root of two. The square root of. Square root. So let's give some examples to show what is the square root. Okay, so if I ask you the square root of nine. Three.

  Three, right? Yes. What about the square root of four? Two. Two. Okay, so now one more.

  The square root of sixteen. Four. Four. Okay, so you notice（注意） the pattern（型）, right? And I'm sure everyone knows this in their own language, how you would get a square root. Exactly.

  So this language is pretty simple（ 简单的）. You all know it in your own language, but let's hear it again in English one more time with the dialogue. All right, children, let's review. Tommy, pay attention. Sorry, Miss Catholic. Okay, crystal.

  Now tell me what's four plus 11. Um, 15. Miss Catholic always has crystal. She's such a teacher's pet. Okay. And what about 56 minus 60?

  Um, negative four. Very good. 12 times 12. Very good. Suck up. 144.

  Zero divided by one. Zero. How did you know that? Okay, smarty pants, the square root of two. Bet you're not going to get that one. Do it all.

  Um, um, one point four, one, four, two, one, three, five. Okay, so we understand the mathematical operations that we saw here. Very easy. But now there was another little kid（小孩） in there who was very, I think, envious or jealous（妒忌的）. Yeah, Tommy. Tommy, right?

  So he called her a couple（夫妇） of different names. Well, let's look at those now in Fluency（流利） Builder（建筑者）. Fluency Builder. Okay. So the first one that he called crystal, the little girl, he called her a teacher's pet. Teacher's pet.

  Teacher's pet. A teacher's pet. So Erica, what exactly is a teacher's pet? It is the favorite student the teacher has in that class. All right. So it's always the student that's helping the teacher.

  Yeah. The smartest student. Yeah. Yeah. The teacher's pet. Yeah.

  And it has a negative meaning in English. Yeah. I wouldn't say that it's a good thing to be the teacher's pet. Like the teacher thinks it's good. Yeah. But all of the friends and the classmates（同班同学）, they think it's bad.

  Yeah, exactly. Teacher's pet. And similar to teacher's pet is a suck up. Suck up. Suck up. Again, suck up.

  What is this? What is a suck up? A suck up is a person who tries really, really hard to make the teacher like him. Okay. Now we can also use it outside of the classroom, right? Yeah.

  At work maybe. Okay. There is always at work. There is always one person who's the suck up, right? Yes. Now again, this has a negative meaning in English.

  Yeah. I guess in the workplace（工作场所）, the rest（休息） of your colleagues（同事） don't really like that person who's considered to be the suck（吸） up, who's always trying to please（使高兴） the boss（老板）. Exactly. All right. All right. So the teacher calls Crystal a smarty pants.

  Smarty pants. Smarty pants. Okay. So this is also a little name calling, right? So what is a smarty pants? Somebody who is too smart.

  Too smart. Who tries too hard to be smart. Now this is only for little kids, right? I wouldn't call you a smarty pants. No, it's definitely（一定地） for children. Adults don't say this.

  Unless（除非） maybe you are joking（说笑话） or having fun with someone. Yeah. But if you say it, you are suggesting（建议） that you're being like a child. Right. Yeah. Okay.

  Smarty pants. And our last one, and this is also a very good phrase and a way to describe someone. Know it all. Know it all. Know it all. A know it all.

  Sometimes you say Mr.Know it all, right? Yeah, that's right. Okay. So what is a know it all? Somebody who tries to show everyone that they know it all. They know everything.

  Yeah. They're so smart. They have the answers to everything. But they really, really try and show everyone that they know everything. These people can be sometimes a little bit irritating（刺激的）, right? Yeah.

  Very, very annoying（恼人的）. Annoying. Yeah. All right. So it's not a good thing to be a know it all, all the time. Yeah.

  Actually, all of these phrases are not good things to be. Okay. So let's listen to our dialogue one more time. And then we're going to come back and Eric is going to tell us how much she hates math. All right, children. Let's review.

  Tommy, pay attention. Sorry, Miss Catholic. Okay, Crystal. Now tell me what's four plus 11. Um, 15. Miss Catholic always has crystal.

  She's such a teacher's pet. Okay. And what about 56 minus 60? Um, negative four. Very good. 12 times 12.

  Very good. Suck up. 144. Zero divided by one. Zero. How did you know that?

  Okay, smarty pants, the square root of two. Bet you're not going to get that one. Do it all. Um, 1.4142135. All right. So, Erica, you were telling me that you hated math or you still do.

  Well, yes, that's true. I really do hate math. And even, even doing a simple, um, you know, like 16 plus 32 is too hard for me. So you were never really that type of person that's good with numbers. No, I'm terrible with numbers. I can't even remember my own phone number.

  Really? That's true. Like I really, if someone asks me for my phone number, I have to look on my phone. I'm in the address book to find it. Well, yeah, sometimes numbers can be difficult. I kind（种类） of liked, uh, math when I was younger.

  It's, uh, it just made sense（ 感觉）. Well, I guess there's a reason why I'm an English teacher, not a math teacher. And I was actually not very good at language, but here you are. Exactly. Well, I mean, in Spanish, I like grammar. Oh, not very good at that.

  All those rules. Yeah. But you're pretty good at English. That's all right. That's all right. Yeah.

  What about you guys? Tell us what your favorite subject or your least favorite subject in school was. What about you? Do you have any favorite subject or did you have a favorite subject? Um, history, history. Yeah.

  Okay. I liked chemistry（化学） for a while（一段时间）. God（神）, chemistry（化学） involves（包含） numbers. Well, a little bit, but it was interesting as（ 像…一样） well.