Lesson 1-4 Integers and Absolute Value By: Mr. Menjivar

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: 4L 4R 2

Warm-Up

Assignment #2 Write an expression for each word phrase. Then identify each expression as a numeric expression or an algebraic expression. The total of h and 56 Three less than d Five decreased by three a divided by seven

Assignment #3 Simplify each expression 8−2•2 12÷3−1•2+1 20−3 5+2 −1

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: 4L 4R 6

Standard Number Sense 2.5: Understand the meaning of absolute value of a number; interpret the absolute value as the distance of the number from zero on a number line; and determine the absolute value of real numbers.

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Objective: 4L 4R 8

Objective To graph and order integers To find opposites and absolute values Why learn this: To represent real-world quantities that are less than zero, such as temperatures and scores.

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Objective: Vocabulary: 4L 4R 10

Vocabulary Integer:

Vocabulary Absolute Value:

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Objective: Vocabulary: Notes/Examples: 4L 4R 13

Using the Number Line Helps Arrange Numbers in Order Numbers increase in value from left to right

Graphing on a Number Line Put -1, 4, and -5 in order from least to greatest

Graphing on a Number Line Put 0, 2, and -6 in order from least to greatest

Finding Absolute Value Use the Number Line to find the −3 and 3

Finding Absolute Value Use the Number Line to find the −10

Finding Absolute Value Use the Number Line to find the − −10

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Classwork #1: Objective: Vocabulary: Notes/Examples: 4L 4R 20

Classwork #1

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Classwork #1: Objective: Vocabulary: Notes/Examples: [Back to the NOTES] 4L 4R 22

Simplifying an Expression with Absolute Value 14− 9+4

Simplifying an Expression with Absolute Value 14+ 9−4 14− 9−4

Simplifying an Expression with Absolute Value 5 −4

Simplifying an Expression with Absolute Value 5 4 −5 −4

Simplifying an Expression with Absolute Value 10+9 −2∙7

Simplifying an Expression with Absolute Value 10−9 +2∙7 10−9 −2∙7

Simplifying an Expression with Absolute Value (Challenge) −12 − 12 −5

Lesson 1-4 Integers and Absolute Value Reflection Observe, Question, Comment 08/23/11 08/23/11 Lesson 1-4 Integers and Absolute Value Reflection Lesson 1-4 Integers and Absolute Value Warm-Up: Standard: Classwork #1: Objective: Classwork #2: Vocabulary: Notes/Examples: [Back to the NOTES] 4L 4R 30

Classwork #2

Absolute Value Break Time

Assignment #4

Exit Slip Graph 2, -2, and -3 on the number line. List the numbers in order from least to greatest. Find −5 and 5 Simplify 9− 11−7