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Bell Ringer O Write an integer to represent the following situation. The top of the world’s lowest known active volcano is 160 ft below sea level.
Bell Ringer
O Write an integer to represent the following
situation. The top of the world’s lowest
known active volcano is 160 ft below sea
level.
Section 1-2: Integers and Absolute Values
Charles, R. (2013). Prentice Hall mathematics, course 3: Common core
(2013 ed.). Boston, Mass.: Pearson Prentice Hall.
I am learning to…
O Find absolute values of integers and to use
absolute value to compare integers.
Real-World
O Temperatures can be below freezing! You
must know an integer to understand it is
below zero!
Vocabulary Section 1-2
O Opposites: numbers that are the same
distance from zero on a number line but in
opposite directions.
O Integers: are the set of whole numbers and
their opposites. … -2, -1, 0 , 1, 2…
O Absolute Value: a number’s distance from
zero on the number line.
Example 1: Finding Absolute Values
O −8 =
O 2
O - 3
Example 2: Comparing and Ordering Integers
O Order -5, 7, 3, and -1 from least to greatest.
Example 3: Absolute Value in Algebraic Expressions
O 𝑥 + 𝑦 for x = -3 and y = 5
O 4𝑥 𝑓𝑜𝑟 𝑥 = −4
O 3 𝑠 𝑓𝑜𝑟 𝑠 = −5
Formative Assessments
O Homework: Page 12 #’s 6-30 even
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O All material is from the Pearson Course 3
Mathematics Common Core Textbook.
