1. Standard: Number Sense N5 Integers
Gross 3-1 Notes
Standard: Number Sense N5 Integers
Objective: I will graph integers on a number line and evaluate absolute value expressions

2. 3-1 Integers and absolute values p. 106-108
Integers(3-1): {…-3,-2,-1,0,1,2…} the whole numbers and their opposites
Absolute value(3-1): The distance a number is from zero | x |

3. Steps for graphing numbers on a number line
Draw a line and make marks at evenly spaced intervals
Label the marks with a scale (go by 1 or 2 or 5 or .5, etc)
Put a dot on the line where the selected number belongs (magnify that spot)

4. Put the following on a number line
Gross 3-1 Notes
Put the following on a number line
{-1, 5, -3, 2}
{-8, 0, 10}

5. Absolute Value | - 4| means… How far is -4 from zero? 4 So |-4|=4
Evaluate | 6 |←How far is 6 from 0?
| 6| = 6

6. Practice Evaluate |-12| - | 5 | |-12| - | 5 | 12 – 5 7
Read : What is the difference between how far -12 is from zero and how far 5 is from zero?
Answer:
|-12| - | 5 |
12 – 5 7

7. More examples to discuss…
Describe a situation in life where negative integers occur.
On a number line graph 2 points that have the same absolute value
Which one doesn’t belong
| -3| | 3 | 3

8. Homework 1, 3, & 8 periods- pg. 108 #17-33 odd