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Module 2 Lesson 6.notebook 1 November 06, 2013 11/6/13 Module 2, Lesson 6 HW: Lesson 6 Problem Set Do Now: Exit Ticket For Lesson 5 The Distance between two rational numbers Quiz Friday
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Module 2 Lesson 6.notebook
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November 06, 2013
11/6/13Module 2, Lesson 6
HW: Lesson 6 Problem Set
Do Now:
Exit Ticket For Lesson 5
The Distance between two rational numbers
Quiz Friday
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2
2 +7 = 5 2 (7) = 5
5 + (9) = 4
14 + 2 = 12
8 + (6) = 14
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Problem Set 5 Answer Key
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Problem Set 5 Answer Key
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Problem Set 5 Answer Key
2 + 16
18 + (26)
14 + (23)
30 + 45
1 2 = 1 + (2)
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Problem Set 5 Answer Key
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Discussion:
1.) In life, at any given moment, will we always be able to use a number line to find the distance between two rational numbers? Is it the most efficient way to calculate distance between two points?
2.) What represents the distance between a number and zero on the number line?
3.) If the distance between 5 and 0 can be calculated using 5 - 0 or 5 , do you think we might be able to calculate the distance between -4 and 5 using absolute value?
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6 (10) = 6 + 10 = 4
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|3 2| = |3 + (2)|= |5| = 5
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|200 580| = |200 + (580)| = |780| = 780
780 increase
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780
780 ft, 780 ft decrease
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10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10
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10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10
|7 (4)| = |7 + 4| = |3| = 3
|18 15| = |18 + (15)| = 33
33
140 (40) = 140 + 40 = 180
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CLOSING:• How can we use a number line to find the distance between two
rational numbers?
• What does it mean to find the absolute value of a number ?
• Is it possible to use absolute value to find distance between a number, p, and another number, =, that isnot zero ? If so how?
• Is distance always positive? Is change always positive?
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