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Transparency 2

2. Splash Screen

3. Compare and order integers
Objective
Compare and order integers
Example 2-2b

4. The middle number in an ordered data set
Review Vocabulary
Median
The middle number in an ordered data set
Example 2-2b

5. Math Symbols
< is less than
> Is greater than
Example 2-2b

6. Example 1 Compare Integers Example 2 Order Integers
Lesson 2 Contents

7. Replace the  with < or > to make –9  –5 a true sentence.
Write the problem using a circle for the comparison
We know that 9 is larger than 5 but when they are negative the inverse is true
We can see this on a number line
Plot - 9
Answer: –9 < –5
Plot - 5
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Example 2-1a

8. Replace the  with < or > to make –3  –6 a true sentence.
Answer: –3 > –6
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Example 2-1b

9. Record Low Temperature (°F)
MULTIPLE-CHOICE TEST ITEM The lowest temperatures in Europe, Greenland, Oceania, and Antarctica are listed in the table. Order the temperatures from least to greatest.
A –67, –87, 14, –129
B 14, –67, –87, –129
C –129, –87, –67, 14
D –67, –87, –129, 14
–129
Antarctica 14
Oceania
–87
Greenland
–67
Europe
Record Low Temperature (°F)
Continent
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Example 2-2a

10. Record Low Temperature (°F)
–129
Antarctica 14
Oceania
–87
Greenland
–67
Europe
Record Low Temperature (°F)
Continent
Begin with the negative numbers
Remember: The bigger a number looks, the smaller it is when it is negative
Negative 129 is the smallest number
Negative 87 is the next smaller number
-129, -87,
-129, -87, -67,
-129,
Negative 67 is the next smaller number
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Example 2-2a

11. Record Low Temperature (°F)
–129
Antarctica 14
Oceania
–87
Greenland
–67
Europe
Record Low Temperature (°F)
Continent
14 is the only number remaining that has not been used
Choose the appropriate answer
A –67, –87, 14, –129
B 14, –67, –87, –129
C –129, –87, –67, 14
D –67, –87, –129, 14
-129, -87, -67, 14
-129, -87, -67,
-129, -87,
-129,
Answer: C
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Example 2-2a

12. *
MULTIPLE-CHOICE TEST ITEM The lowest temperatures on a given day in four cities in the United States are listed in the table. Order the temperatures from least to greatest. –3
Newport, RI 7
Denver, CO –6
New York City, NY
–12
Portland, OR
Low Temperature
City
A –3, –6, 7, –12
B –12, –6, –3, 7
C –12, 7, –6, –3
D 7, –3, –6, –12
Answer: B
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Example 2-2b

13. Comparing and Ordering Integers
Assignment
Lesson 3:2
Comparing and Ordering Integers
All
End of Lesson 2