Mini-Roleplays Addition and Subtraction

63 | P a g e unit 4 Are you ready to move on? 2. Make story problems of addition and subtraction by using this information No Persons Numbers Units Operation 1. Vera 53 Wallets Addition 2. Galih 21 Globes Subtraction 3. Reni 104 Erasers Addition 4. Bayu 72 Bags Subtraction 3. MAKE STORY PROBLEMS AGAIN.... Pair Work see page 181 Your teacher will bring a jar of folded small papers. Each paper says the person, the number, the unit, and the operation. With your partner, you have to compete with other groups and each pair has 5 minutes to do the game. In turn, one of you takes one of the papers in the jar and directly makes a story problem based on the information written on the paper. The other listens to the story problem said by hisher partner and then answers it. The pair who can say more correct answers is the winner. MATHS VOCABULARY Here are the words that related to addition and subtraction. Do you know the meaning of these vocabularies? Use your dictionary if needed. add key word operation addition left person all together measure plus count minus subtraction be equal to model symbol equal numeral unit horizontally number vertically 64 | P a g e unit 4 Are you ready to move on? Snapshot Based on the picture above, talk about these questions with your friends. What situation is ilustrated in the picture? What are they doing? Have you ever experienced this situation? If yes, what do you usually do to overcome the students? What will you say? Conversation As a teacher, we sometimes face many distractions appearing in the class. Besides the situation above in the snapshot, what other distractions have you ever experienced? What do you say to your students to overcome the situations? On the next page, there is a conversation ilustrating another distruction happened in a class. Read and practice it with your classmates. Section II 65 | P a g e unit 4 Are you ready to move on? Teacher : Hello, class. Students : Hello, Miss Endang. Teacher : How are you? Students : We’re fine, thank you. And you? Teacher : I’m fine too. Thank you. Who isn’t here today? Henu : Ahmad. Teacher : What happened to him? Henu : He is sick. There is a permission letter from his parents. It’s on your table. Teacher : Ok Henu. Thank you. suddenly a mobile phone is ringing Teacher : Whose mobile phone is that? Rahma : It’s mine, Miss Endang. I’m sorry, I forgot to turn it off. Teacher : That’s okay, but don’t let it happen again. And everyone, now please check your own mobile phone. Your phone should be turned off during class. . . . finished? Students : Yes, miss. Teacher : All right students. Please pay attention. Last meeting we discussed about addition and subtraction. Today, we are going to talk about getting change problems, the combination of addition and subtraction problem. At the store, we spend money. We add the prices to see how much all together. Then, we subtract to find how much our change we receive. I’ll write its example on the whiteboard and show you something on the screen. the teacher is writing the example and turning on the screen Now, look at the blackboard please. It is the example of a problem related to getting change problems. I want one of you to read the example. However, there are two students chit-chating Teacher : Doni, Andi, What are you talking about? Would you like to say something to the class? Doni : Sorry, Miss. Andi : We are really sorry, Miss Endang.