When is -4.75 “more than” -2.25?

In this lesson you will learn to interpret absolute value in real-

world situations by using a number line.

Let’s Review

|5| = 5

|-5| = 5

A Common Mistake

|-6| < |-4.25|

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Core Lesson

|-12.5| = 12.5 ft.

|-6.5| = 6.5 ft.

l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l

0 Sea Level

15 ft.

10 ft.

5 ft.

-5 ft.

-10 ft.

-15 ft.

A

B

Core Lesson

|-$4.75| = $4.75 in debt

l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l $0-$2-$3-$4 -$1 $1 $2 $3 $4 $5-$5

|-$2.25| = $2.25 in debt

Tim owes $4.75Chris owes $2.25

In this lesson you have learned to interpret absolute value in

real-world situations by using a number line.

Guided Practice

Jenny and Tracy are running a race. Jenny is 8.5 yards from the finish line and Tracy is 3.75 yards from the finish line. Show who is further from the finish line using absolute value.

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Guided Practice

You are $3.50 in debt. Write your debt using absolute value. How far from being out of debt are you?

l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l $0-$2-$3-$4 -$1 $1 $2 $3 $4 $5-$5

Extension Activities

Absolute value ordering

Create a set of integer flashcards.

Draw five cards at random.

Line the cards up from least to greatest as integers.

Line the cards up from least to greatest as absolute values.

Extension Activities

Ordering Oceans

Using the Internet, find the depth of several oceans.

Create a picture that shows the depth of each ocean.

Order the oceans from deepest to shallowest.

Share your picture with your class.

Quick Quiz

If you borrow $5.25, which of the following shows how much you need to earn to get out of debt?

Tom takes the elevator 6 floors below ground level. How many floors will he need to go up to get back to the ground level?