II COMMON Lesson 1: Positive and Negative Numbers on the Number line opposite. enaaae. Lesson 1: Positive and Negative Numbers on the Number Line
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1 II COMMON Lesson 1: Positive and Negative Numbers on the Number line opposite ny Direion and Value enaaae 51 Date: 10/7/13 Which group had the opposite of the number on your index card? Choose a group representative to place the opposite number on the class number lines 4 Mark the opposite on both number lines -t 0 cl{ 3 Show and explain how to find the opposite of your number on both number lines 2 Plot your point on both number lines 3 I -r ±) > 1 Complete the diagrams Count by l s to label the number lines 7 jt Exercises Classwork Opposite Direction and Value Lesson 1: Positive and Negative Numbers on the Number Line NYS COMMON MATHEMATICS CURRICUIUM Lesson 1
2 NYS COMMON MATHEMATICS CURRICULUM Lesson 2 Lesson 2: Real-World Positive and Negative Numbers and Zero CIa sswo rk Example 1: Take it to the Bank For Tim s 13 th birthday, he received $150 in cash from his mom His dad took him to the bank to open a savings account Tim gave the cash to the banker to deposit into the account The banker credited Tim s new account $150 and gave Tim a receipt One week later, Tim deposited another $25 that he had earned as allowance The next month, Tim asked his dad for permission to withdraw $35 to buy a new video game Tim s dad explained that the bank would charge $5 for each withdrawal from the savings account and that each withdrawal and charge results in a debit to the account Read Example 1 silently In the first column, write down any words and definitions you know In the second column, write down any words you do not know Words I Already Know: Words I Want to Know: Words I Learned: In the third column, write down any new words and definitions that you learn during the discussion II COMMON Lesson 2 Real World Positive and Negative Numbers and Zero fly Date: 10/15/13 engage s3
3 1 Read Example 1 again With your partner, number the events in the story problem Write the number above each sentence to show the order of the events Exercises 1 2 a,nnrr I I1 COMMON Lesson 2: Real-World Positive and Negative Numbers and Zero fly Date: 10/15/13 ericiacie s4 $35 A withdrawal of, 1 Abankchargeof t4 + +f i f $25 Make a deposit of Credit an account for $150 ) O Makea$150 f ± 2 account with $0 0 ) r Open a bank 2 Write each individual description below as an integer Model the integer on the number line using an appropriate scale dad for permission to wit 1ä w $35 to buy a new video game Tim s dad explained that the bank would charge $5 for each withdkavial from the savings account and that each withdrawal and charge results in a d btt to the account E) a receipt One week later, Tim dep ed another $25 that he had e1n d as allowance The next month, Tim asked his f5 Tim gave the cash to the banker to osit into the account The banker credited Tim s new account $150 and gave Tim For Tim s l3 birthday, he received $150 in cash from his mom His dad took him to the bank to n a savings account I f) NYS COMMON MATHEMATICS CURRICULUM Lesson 2
4 NYS COMMON MATHEMATICS CURRICULUM Lesson 2 Example 2: How Hot, How Cold? Temperature is commonly measured using one of two scales, Celsius or Fahrenheit In the United States the Fahrenheit system continues to be the accepted standard for nonscientific use All other countries have adopted Celsius as the primary scale in use The thermometer shows how both scales are related 00 a The boiling point of water is 100 C Where is 100 degrees Celsius located on the thermometer to the right? b On a vertical number line, describe the position of the integer that represents 100 C icd,, ZL r : Freezing pointof 0< water in 20 : : c Write each temperature as an integer I The temperature shown to the right in F: ii The temperature shown to the right in C: iii Freezing point of water in Celsius: d If someone tells you your body temperature is 986, what scale are they using? How do you know? UiQdtT bc I S od UU e Does the temperature 0 degrees mean the same thing on both scales? -, Lr Lr fc:- 21 V I COMMON Lesson 2: Real-World Positive and Negative Numbers and Zero fly Date: 10/15/13 engage
5 Gain Loss Deposit Credit Debit Charge Below Zero Withdraw Owe Receive 3 Write each word under the appropriate column, Positive Number or Negative Number Exercises 3 5 II COMMON Lesson 2: Real-World Positive and Negative Numbers and Zero fl Date: 10/15/13 engage Describe a situation that can be modeled by the integer 15 Explain what zero represents in the situation f A football player lost 10 yards when he was tackled e The temperature outside is 4 degrees below zero d The temperature at the sun s surface is about 5,600 C c Jacob owes his dad $5-5 b You earned $25 for dog sitting a A company loses $345,000 in L 4 Write an integer to represent each of the following situations: ( 4- be 0 Li c 0 s 5 NYS COMMON MATHEMATICS CURRICULuM Lesson 2 S6
6 NYS COMMON MATHEMATICS CURRICULUM Lesson 3 Lesson 3: Real-World Positive and Negative Numbers and Zero Classwork Example 1: A Look at Sea Level The picture below shows different people participating in activities at discuss what you see What do you think three three the word elevation means in this situation? different elevations With a partner, II; COMMON Lesson3 Date: Real-World Positive and Negative Numbers and Zero 10/14/13 engage fly S8
7 The diver is 30 feet below sea level Refer back to Example 1 Use the following information to answer Exercises 1 and 2 Exercises Ii CO!V1MON Lesson 3: Real-World Positive and Negative Numbers and Zero fly : Date: 10/14/13 engage ii The depth of the coral reef is 250 feet eiowsee4evefr i çj[ie coral reef is 250 feet below b The elevation pf?cprai reef with respect to sea level is given as 250 feet ii 800 feet below sea level can be represented by the intege 80&) i The depth of the submarine is )feet below sea level a A submarine is submerged 800 feet below sea level correctly correctly (I and ii), and circle it Then correct the other related statement so that both parts, i and ii, are stated 3 For each statement there are two related statements: i and ii Determine which related statement is expressed L - b A diver is 20 feet below sea level a A hiker is 15 feet above sea level Also, write an integer to represent both situations 2 Use an appropriate scale to graph each of the following situations on the number line to the right h ke Write an integer to represent each situation The sailor is at sea level The hiker is 2 miles (10,560 feet) above sea level NYS COMMON MATHEMATiCS CURRICULUM Lesson 3
8 Lesson 4: The Opposite of a Number II Date: 10/8/13 egage COMMON lesson 4: The Opposite of a Number fly if I I I I a 9 b 2 d 7 c 4 2 Locate the opposites of the numbers on the number line Exercises <II I I I> Locate the number 8 and its opposite on the number line Explain how they are related to zero Example 1: Every Number has an Opposite same distance from zero on the number line 1 Each integer has an opposite, denoted a; a and a are opposites if they are on opposite sides of zero and the Exercise 1: Walk the Number Line Classwork NYS COMMON MATHEMATICS CURRICULUM Lesson 4 C
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