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Comparing and Ordering
Positive and Negative Numbers
Lesson 6.1Page 218-220
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
CA Content Standards
• Number Sense 1.1***: We compare and order positive and negative fractions, decimals, and mixed numbers and place them on a number line.
• Mathematical Reasoning 1.1: We analyze problems by identifying relationships, distinguishing relevant from irrelevant information, sequencing and prioritizing information, and observing patterns.
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
Vocabulary:
Vocabulary: INTEGERS
• The set of positive whole numbers, their opposites, and zero. (Ex: -2, -1, 0, +1, +2)
Vocabulary: OPPOSITES
• Pairs of numbers that are the same distance on a number line from zero. (Ex: -7 & +7)
Vocabulary: POSITIVE NUMBERS
• Numbers whose value is greater than zero. (Ex: +4 & +9)
Vocabulary: NEGATIVE NUMBERS
• Numbers whose value is less than zero. (Ex: -3 & -8)
Vocabulary: ABSOLUTE VALUE
• The distance from zero to an integer on the number line.
• Absolute values are always neutral (neither + nor -).
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
Vocabulary:
Objective:
Objective:
• Compare and order positive and negative numbers.
• Math Link: You know how to compare and order whole numbers, decimals, and fractions. Now you will learn how to compare and order positive and negative numbers.
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
Vocabulary:
Objective:
Notes & Examples:
Parts of a Number Line
Bigger numbers are to the RIGHT
Smaller numbers are to the LEFT
Place +5, -4, +2, 0, and -2 on a number
line. Then write them in order from least
to greatest.
Bigger numbers are to the RIGHT
Smaller numbers are to the LEFT
REMEMBER…
From least to greatest: -4, -2, 0, 2, 5Example 1.
Place +2, -0.5, 0, -3, and + 1.75 on a
number line. Then write them in order
from least to greatest.
Bigger numbers are to the RIGHT
Smaller numbers are to the LEFT
REMEMBER…
From least to greatest: -3, -0.5, 0, +1.75, +2Example 2.
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
Vocabulary:
Objective:
Notes & Examples:
pg. 219, # 7-10; pg. 220, # 19-24
Write the absolute value and the opposite of -4.
-4
Absolute value (always neutral) = 4
Opposite = +4
Example 3.
Write the absolute value and the opposite
of +386, 942.+386,942
Absolute value (always neutral) = 386,942
Opposite = -386,942
Example 4.
Lesson 6.1:Comparing & Ordering Positive and
Negative Numbers (pg. 218-220)
10/06/08
12R
Lesson 1.2: pg. 219, # 1-6; pg. 220, # 12-17
10/06/08
12L
Standards:
Vocabulary:
Objective:
Notes & Examples:
Moral of the Story:pg. 219, # 7-10; pg. 220, # 19-24
The Moral of the Story
• To order positive and negative numbers, use their position on the number line to assess their relative value.
Math Minute # 310/08/08
13R
Math Minute # 310/08/08
13L
Math Minute # 3
① The product of 4 and 6 is ___.
② 2,463 x 0 =
③ 1, 10, 2, 9, 3, ___, ___, ___
④ 8/4=
⑤ 4 48
Math Minute # 3 Continued
⑥ 8 + 6 ÷ 3 =
⑦ 3 + 4 3 =
⑧ Apples: 4 for $ 2. How much does each apple cost?
⑨ 5 + (3 – 1) =
⑩ The difference between 9 and 5 is ___.
