1-2 Integers and Absolute Value

Aim: How can we find the absolute values of integers and use absolute value to compare

integers?

CCSS: 6.NS.7.c

Warm Up

Vocabulary Review:

What is an algebraic expression?

Evaluate each expression for x = 4.

1. 2x + 3

2. 5(x – 1)

3. 7x – 4x

Finding absolute value

1. Find |-6|

2. Find | 7| and |-7|

Numbers that are the same distance from zero on a number line but in opposite direction are opposites.

Comparing and ordering integers

Which Continent has the lowest recorded temperature?

A- Africa C- Antarctica

B- Asia D- South America

Find the negative integer with greatest absolute value. Lowest Recorded Temperatures

Continents º FAfrica -11Antartica -129South America -27Asia -90

Integers: are the set of whole numbers and their opposites. ZERO is its own opposite

Absolute value in algebraic expressions

Evaluate

1. |2b| - 6 for b = 4

2. 3|s| for s = -5

A number’s distance from zero on the number line is its absolute value.

Think, Turn and Talk

Vocabulary: How are whole numbers different from integers?

Plot each temperature on the number line below.

1. Coventry, Connecticut January 22, 1991: -32ºF

2. Vanderbilt, Michigan February 9, 1934: -51ºF

3. Mt. Mitchell, North Carolina January 21, 1985: -34ºF

4. Smethport, Pennsylvania January 5, 1904: -42ºF

-70 -60 -50 -40 -30 -20 -10 0

Activity Lab: Data Analysis

Group WorkIntegers and

Differences (pg 14)

Students use a business graph to visualize positive and negative

integers and the change (difference) between them .

Exit Ticket

Compare, Write < , > , or =

1. |7| |- 8|

2. |-1| |-6|

3. |-5| |5|

4. |-10| -2

5. 14 |14|

6. 9 |-9|