Accentuate the Negative

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Accentuate the Negative

• Welcome to the World of Integers!

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What I KNOW about integers
What I THINK I KNOW about integers
What I LEARNED about integers
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Video
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• Essential Questions
• What are integers and what are their purpose?

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What are integers?

• When you subtract two positive numbers (numbers
  larger than zero), it is possible to get an
  answer of zero. Zero is neither positive nor a
  negative number.

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What are integers?

• Integers are a group of numbers that include
  positive numbers, negative numbers and zero.
  Integers have no upper bound or lower bound which
  means that range from negative infinity to
  positive infinity.

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What are integers?

• Negative integers are numbers that are less than
  zero. Positive integers are numbers that are
  greater than zero.

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Real World Examples
Sports Gain and lose yards in a football
game
Money deposit and withdraw money
Weather Above and below zero
Geography Above and below sea level
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The number line is a line labeled with the
integers. Numbers to the right of zero are
positive , and numbers to the left of zero are
negative.
Positive Numbers
Negative Numbers
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Number Line Activity
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Number Opposites

• Name the opposites.
• Now lets try a few numbers.

Night
Fast
HOT
-125
-7
10
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ABSOLUTE VALUE
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What is absolute value?
A numbers distance from zero
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(No Transcript)
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Find the absolute value of the numbers circled.
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ABSOLUTE VALUE

• A numbers DISTANCE from zero
• The symbol for absolute value is .
• 6  6-5  50  0

Now you try some...
On your own paper, answer the following questions
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Lets practice what we have learned!

• Order each group from Least to Greatest.
• 17, -24, -16, -8, 7, 2, 23
• -7, -5, 2, -1, 4, 6, -10, 0
• Write the opposite and absolute value.
• 7
• -25
• 106
• -241

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Lets practice what we have learned!

• Complete the statement with lt,gt, or .
• 1. -6 ___ 4 2. -2 ___-4
• 3. 0 ___ -5 4. -24 ___-28

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3 - 2 - 1

• Tell me three number types that make up
  integers.
• Tell me two things about the number zero.
• Tell me one question you have about todays
  lesson.

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DAY 2

• Essential Question
• How can I use and notate positive and negative
  numbers?

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Let's begin lesson 1.1.
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Problem 1.1 A
Complete pg. 9 A E with a learning partner.
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Homework

• P. 16 5
• P. 20 48
• Workbook p. 59 6-15

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Ordering Rational Numbers

• What are rational numbers?
• Lets try some!
• Skit

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Ordering Rational Numbers
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How is the thermometer similar to the number line?
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With a learning partner
Page 11 Problem 1.2
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Homework

• P. 16 9-19
• P. 19 40-41, 44-47
• P. 20 49-51

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Math Log

• Accentuate the Negative
• Summary for Investigation 1

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Answer these questions

• How do you decide which of two numbers is greater
  when
• Both numbers are positive?
• Both numbers are negative?
• One number is positive and one number is
  negative?

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• 2. What does comparing locations of numbers on a
  number line tell you about the numbers?