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Published byJosephine O’Brien’ Modified over 9 years ago
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Today’s lesson... What: Introduction to integers Why: To introduce integers, identify real-life applications, compare/order integer numbers, and study the absolute value of numbers.
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What is an integer? Integers include the _____________________ whole numbers, the positive whole numbers, and zero. negative
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Real-life Applications:
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Identifying positive/negative numbers: Place the following numbers on the below number line: 0-5 -3 ½ 0.5-0.5 -4 1 / 4 9.5-8.5
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Comparing positive /negative numbers: Place a > or a < in the following blanks: 5 _____ -8-1 _____ 0 -1 / 2 _____ -1 -5.5 _____ -6-3 _____ - 3.75-10 _____ -9 > > > < ><
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Ordering positive/ negative Numbers: Order the following from least to great: -2530 -1 / 2 -4.551/451/4 1. Order the following from greatest to least: -8-9-8.57-7.5-7 2. -25, -4.5, -1/2, 0, 3, 5 ¼ 7, -7, -7.5, -8, -8.5, -9
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Absolute value: Absolute Value measures ___________________ from ________________ on a number line. Absolute value is ALWAYS __________________ because distance ALWAYS has value!! Example: Model the absolute value of 3 ( |3| ) on the below number line: distance zero positive The SYMBOL for ABSOLUTE VALUE is | | !
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Evaluate: |9|| -4|-|15| | -3 / 4 | - |- 28| |-6| + | 5| |15 - 16||12 - 14| 94-15¾ - 28 11 1 2 WHY IS ABSOLUTE VALUE ALWAYS POSITIVE?? Because distance ALWAYS has value!!
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END OF LESSON The next slides are student copies of the notes for this lesson. These notes were handed out in class and filled-in as the lesson progressed. NOTE: The last slide(s) in any lesson slideshow (entitled “Practice Work”) represent the homework assigned for that day.
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Real-life Applications: Math-7 NOTES DATE: ______/_______/_______ What: Introduction to integers Why: To introduce integers, identify real-life applications, compare/order integer numbers, and study the absolute value of numbers. NAME: Identifying positive/negative numbers: Place a > or a < in the following blanks: 5 _____ -8-1 _____ 0 -1 / 2 _____ -1 -5.5 _____ -6-3 _____ - 3.75-10 _____ -9 Place the following numbers on the below number line: 0-5-3 ½ 0.5- 0.5-4 1 / 4 9.5-8.5 0 Comparing positive /negative numbers: What is an integer? Integers include the _______________________________ whole numbers, the positive whole numbers, and zero.
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Ordering positive/ negative Numbers: Order the following from least to great: -2530 -1 / 2 -4.551/451/4 1. Order the following from greatest to least: -8-9-8.57-7.5-7 2. Absolute value: Absolute Value measures _____________________ from ________________ on a number line. Absolute value is ALWAYS ______________________ because distance ALWAYS has value. Evaluate: |9||9|| -4 |- | 15 || -3 / 4 | - |-2 8 || -6 | + |5|| 15 - 16 || 12 - 14 | Example: Model the absolute value of 3 ( | 3 | ) on the below number line:.
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1) 10 ______ 122) 0 ______ -123) 1/3 ______ 25% 4) -5 ______ -5.55) -2 ______ -1.26) -15 ______ -15.1 10) |-9| =11) |25| =12) |-258| = 13) - |923| =14) |- 0.25 | =15) |0| = 16) |-9| + | 8 - 10| =17) - |-250| = 18) |-5| + |-12| = Absolute Value: 7)Absolute value measures a number’s ________________________________ from zero on a number line. 8)Because absolute value is a measure of distance, it is always ____________________ because distance always has value. O Place the following numbers on the Number Line: -2-6159-7-4 ½-2.5-3.26.75-8.1-1/30.9 Fill in the blank with or = : NAME:________________________________________________________________DATE: _____/_____/__________ PRACTICE WORK “Integers and absolute value” 9) Model the absolute value of “-6” ( |-6|) on the below number line: O
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